Taxa Listing

All 6659 unique plant names (taxa) planted at the JC Raulston Arboretum are listed below. Use the search form to narrow down the results or download a pdf list from our Current Plantings publication web page.

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A

• Abelia
• Abelia chinensis – Chinese abelia
• Abelia ×grandiflora 'Abelops' – Sunshine Daydream glossy abelia
• Abelia ×grandiflora 'Canyon Creek' – golden glossy abelia
• Abelia ×grandiflora 'Francis Mason' – glossy abelia
• Abelia ×grandiflora 'Frosty' – glossy abelia
• Abelia ×grandiflora 'Hopleys' – Miss Lemon variegated glossy abelia
• Abelia ×grandiflora 'Keiser' – Ruby Anniversary glossy abelia
• Abelia ×grandiflora 'Mardi Gras' – variegated glossy abelia
• Abelia ×grandiflora 'Margarita' – Twist of Orange variegated glossy abelia
• Abelia ×grandiflora 'Minduo1' – Sunny Anniversary glossy abelia
• Abelia ×grandiflora 'Wev02' – Bella Donna glossy abelia
• Abelia 'SRPabeper' (Peach Perfection) – glossy abelia
• Abelia 'X10-9002-23' – abelia
• Abelia 'X10-9028-7'
• Abelia 'X10-9044-1'
• Abelmoschus manihot – sweet hibiscus
• Abies cephalonica 'Meyer's Dwarf' – dwarf Greek fir
• Abies concolor 'Blue Cloak' – concolor fir
• Abies fargesii – Farges' fir
• Abies firma – Momi fir
• Abies guatemalensis – Guatemalan fir
• Abies holophylla – Manchurian fir
• Abies koreana – Korean fir
• Abies koreana 'Silberlocke' – Korean fir
• Abies koreana 'Tundra' – Korean fir
• Abies pinsapo 'Aurea' – golden Spanish fir
• Abutilon 'Bartley Schwarz' – flowering maple
• Abutilon 'Canary Bird' – flowering maple
• Abutilon 'Marion Stewart' – flowering maple
• Abutilon megapotamicum – Brazillian bellflower
• Abutilon megapotamicum 'Little Imp' – Brazillian bellflower
• Abutilon megapotamicum 'Red Heart' – Brazillian bellflower
• Abutilon megapotamicum 'Ruffles' – flowering maple
• Abutilon 'Orange Hot Lava' – flowering maple
• Abutilon 'Sink Pink' – flowering maple
• Abutilon 'Traffic Island' – flowering maple
• Abutilon 'Voodoo' – flowering maple
• Abutilon 'Windcliff Silver Pink' – flowering maple
• Abutilon 'Windcliff White' – flowering maple
• Acalypha pendula – creeping chenille plant
• Acantholimon – Prickly thrift
• Acantholimon (giant silver cushion)
• Acantholimon halophilum
• Acanthus 'Holland Days' – bear's breech
• Acanthus 'Summer Beauty' – bear's breech
• Acanthus 'Wofford Rhubarb' – bear's breech
• Acca sellowiana – Kaiteri pineapple guava
• Acca sellowiana – Kakariki pineapple guava
• Acca sellowiana 'Kawatiri' – pineapple guava
• Acca sellowiana 'Nazemetz' – pineapple guava
• Acca sellowiana 'NCSU Hardy' – pineapple guava
• Acca sellowiana 'Opal Star' – pineapple guava
• Acca sellowiana 'Pounamu' – pineapple guava
• Acca sellowiana – Takaka pineapple guava
• Acer – maple
• Acer 'Asian Queen' – smooth Japanese maple
• Acer buergerianum – trident maple
• Acer buergerianum 'Bling-bling' – trident maple
• Acer buergerianum var. formosanum – trident maple
• Acer buergerianum 'Inazuma Nishiki' – trident maple
• Acer buergerianum 'Michael Steinhardt' – trident maple
• Acer buergerianum 'Mino yatsubusa' – trident maple
• Acer buergerianum 'Miyadono' – trident maple
• Acer buergerianum 'Miyasama' – trident maple
• Acer buergerianum 'Naruto' – trident maple
• Acer buergerianum var. ningpoense – trident maple
• Acer aff. campbellii – Campbell's maple
• Acer campbellii 'Boney Fingers' – Campbell's maple
• Acer campbellii subsp. flabellatum – Campbell's Maple
• Acer campbellii subsp. sinense – Campbell's maple
• Acer campestre 'Carnival' – field maple
• Acer campestre 'Nanum' – compact hedge maple
• Acer cappadocicum subsp. cappadocicum – Coliseum maple
• Acer cappadocicum subsp. cappadocicum 'Aureum' – golden Coliseum maple
• Acer cappadocicum subsp. divergens
• Acer caudatifolium – Kawakami maple
• Acer caudatifolium (orange stem) – Taiwan Snakebark Maple
• Acer ceriferum
• Acer circinatum 'Elias' Pacific Waterfall'
• Acer cissifolium – ivy-leaf maple
• Acer aff. davidii
• Acer discolor – evergreen maple
• Acer elegantulum – elegant maple
• Acer (evergreen)
• Acer fabri – Faber evergreen maple
• Acer aff. fabri – Faber maple
• Acer ×freemanii 'Celzam' – Celebration Freeman maple
• Acer ×freemanii 'JFS-KW78' – Armstrong Gold Freeman maple
• Acer 'Girard's Selection' – cinnamon-bark maple
• Acer grandidentatum 'Hipzam' – Highland Park bigtooth maple
• Acer griseum – paperbark maple
• Acer griseum × A. pseudoplatanus – hybrid maple
• Acer griseum 'JFS KW8AGRI' – Fireburst paperbark maple
• Acer henryi – Henry's maple
• Acer henryi 'JFS KW8AH' – Tranquil Sunrise Henry's maple
• Acer hyrcanum – Balkan maple
• Acer japonicum 'Aconitifolium' – full moon maple
• Acer japonicum 'Green Cascade' – full moon maple
• Acer japonicum 'Ô Isami' – full moon maple
• Acer 'JFS-KW249' – Ruby Sunset maple
• Acer 'Johnnie's Giant' – Japanese maple
• Acer laevigatum – smooth maple
• Acer laevigatum 'Hóng Lóng' – red dragon smooth maple
• Acer leucoderme 'Confederate Ghost' – variegated chalk maple
• Acer longipes
• Acer miyabei – Miyabe maple
• Acer monspessulanum – Montpelier maple
• Acer negundo 'Flamingo' – boxelder
• Acer negundo 'Kelly's Gold' – boxelder
• Acer negundo 'Winter Lightning' – boxelder
• Acer nipponicum – Nippon maple
• Acer oblongum – flying moth maple
• Acer oblongum var. itoanum – Himalayan maple
• Acer oliverianum 'Hot Blonde' – Oliver's maple
• Acer oliverianum 'Nakahara Beni' – Oliver maple
• Acer palmatum – Japanese maple
• Acer palmatum × A. circinatum – hybrid maple
• Acer palmatum 'Aka Kawa Hime' – coral-bark Japanese maple
• Acer palmatum 'Alan's Gold' – Japanese maple
• Acer palmatum 'Ao kanzashi' – variegated Japanese maple
• Acer palmatum 'Aoyagi' – Japanese maple
• Acer palmatum 'Arakawa' – Japanese maple
• Acer palmatum 'Asahi Zuru' – variegated Japanese maple
• Acer palmatum 'Beni fushigi' – red lace-leaf Japanese maple
• Acer palmatum 'Beni hime' – dwarf Japanese maple
• Acer palmatum 'Beni Hoshi' – Japanese maple
• Acer palmatum 'Beni komachi' – dwarf red-leaf Japanese maple
• Acer palmatum 'Beni ôtake' – red bamboo Japanese maple
• Acer palmatum 'Beni schichihenge' – variegated pink-leaf Japanese maple
• Acer palmatum 'Beni shi en' – variegated Japanese maple
• Acer palmatum 'Bihou' – gold-bark Japanese maple
• Acer palmatum 'Black Lace' – Japanese maple
• Acer palmatum 'Bloodgood' – purple-leaf Japanese maple
• Acer palmatum 'Burgundy Lace' – Japanese maple
• Acer palmatum 'Calico' – Japanese maple
• Acer palmatum 'Chishio Improved' – Japanese maple
• Acer palmatum 'Corallinum' – Japanese maple
• Acer palmatum 'Creech's Miyabei' – Japanese maple
• Acer palmatum 'Crimson Queen' – red lace-leaf Japanese maple
• Acer palmatum Dissectum Atropurpureum Group – Japanese maple
• Acer palmatum Dissectum Viride Group – green lace-leaf Japanese maple
• Acer palmatum 'Dixie Delight' – Japanese maple
• Acer palmatum 'E.P.' – purple-leaf Japanese maple
• Acer palmatum 'Emerald Lace' – lace-leaf Japanese maple
• Acer palmatum 'Enkan' – dwarf red Japanese maple
• Acer palmatum 'Frilly Willy' – Japanese maple
• Acer palmatum (Fujinami clone) – Japanese maple
• Acer palmatum 'Geisha Gone Wild' – Japanese maple
• Acer palmatum 'Glowing Embers' – Japanese maple
• Acer palmatum 'Gold Digger' – coral-bark Japanese maple
• Acer palmatum 'Golden Falls' – Japanese maple
• Acer palmatum 'Goshiki-koto-hime' – Japanese maple
• Acer palmatum 'Green Hornet' – Japanese maple
• Acer palmatum 'Green Star' – green-leaf Japanese maple
• Acer palmatum 'Green Trompenburg' – Japanese maple
• Acer palmatum 'Hagoromo' – angel's dress Japanese maple
• Acer palmatum 'Haha no Sango' – Japanese maple
• Acer palmatum 'Hana Matoi' – variegated dissectum Japanese maple
• Acer palmatum 'Hefner's Red' – Japanese maple
• Acer palmatum 'Higasa yama' – variegated Japanese maple
• Acer palmatum 'Hime Shojo' – Japanese maple
• Acer palmatum 'Himi's Emerald Gem' – Japanese maple
• Acer palmatum 'Hino Tori Nishiki' – Japanese maple
• Acer palmatum 'Hôgyoku' – green-leaf Japanese maple
• Acer palmatum 'Hubb's Red Willow' – purple narrowleaf Japanese maple
• Acer palmatum 'Ikandi' – variegated Japanese maple
• Acer palmatum 'Jeannie's Dream' – Japanese maple
• Acer palmatum 'Jirô shidare' – green-leaf Japanese maple
• Acer palmatum 'Kamagata' – Japanese maple
• Acer palmatum 'Kashima yatsubusa' – dwarf Japanese maple
• Acer palmatum 'Kiri Nishiki' – Japanese maple
• Acer palmatum 'Kiyohime' – spreading Japanese maple
• Acer palmatum 'Kiyohime Yatsubusa' – dwarf Japanese maple
• Acer palmatum 'Koto ito komachi' – Japanese maple
• Acer palmatum 'Koyamadari Nishiki' – Japanese maple
• Acer palmatum 'Krazy Krinkle' – Japanese maple
• Acer palmatum 'Kuro Hime' – dwarf Japanese maple
• Acer palmatum 'Lemon Chiffon' – Japanese maple
• Acer palmatum 'Linearilobum' – green narrowleaf Japanese maple
• Acer palmatum 'Mama' – tatter-leaf Japanese maple
• Acer palmatum 'Manyô-no-sato' – Japanese maple
• Acer palmatum 'Margaret Bee' – purple-leaf Japanese maple
• Acer palmatum 'Mikawa Yatsubusa' – dwarf Japanese maple
• Acer palmatum 'Milky Way' – agina japanese maple
• Acer palmatum 'Moonfire' – purple-leaf Japanese maple
• Acer palmatum 'Nakakamado Weeping' – Japanese maple
• Acer palmatum 'Nebula' – Japanese maple
• Acer palmatum 'Nishiki gawa' – pine-bark Japanese maple
• Acer palmatum 'Nishiki Momiji' – green-leaf Japanese maple
• Acer palmatum 'Nuresagi' – purple-leaf Japanese maple
• Acer palmatum 'O jishi' – dwarf Japanese maple
• Acer palmatum 'Ô kagami' – Japanese maple
• Acer palmatum 'Okukuji Nishiki' – variegated Japanese maple
• Acer palmatum 'Okushimo' – tube-leaf Japanese maple
• Acer palmatum 'Omure yama' – green-leaf Japanese maple
• Acer palmatum 'Orange Hagoromo' – Japanese maple
• Acer palmatum 'Oregon Sunset' – red lace-leaf Japanese maple
• Acer palmatum 'Oridono Nishiki' – variegated chameleon Japanese maple
• Acer palmatum 'Orion' – Japanese maple
• Acer palmatum 'Ornatum' – red lace-leaf Japanese maple
• Acer palmatum 'Ōsakasuki' – green-leaf Japanese maple
• Acer palmatum 'Pendulum Julian' – red lace-leaf Japanese maple
• Acer palmatum 'Peve Starfish' – Japanese maple
• Acer palmatum 'Pung Kil' – Japanese maple
• Acer palmatum 'Purple Ghost' – purple-leaf Japanese maple
• Acer palmatum 'Red Dragon' – red lace-leaf Japanese maple
• Acer palmatum 'Red Filigree Lace' – red lace-leaf Japanese maple
• Acer palmatum 'Red Pygmy' – red narrowleaf Japanese maple
• Acer palmatum 'Red Select' – Japanese maple
• Acer palmatum 'Rhode Island Red' – red-leaf Japanese maple
• Acer palmatum 'Roja Yatsubusa' – Japanese maple
• Acer palmatum 'Roxie' – Japanese maple
• Acer palmatum 'Ruby Stars' – dwarf red-leaf Japanese maple
• Acer palmatum 'Ryusen' – Japanese maple
• Acer palmatum 'Saiho' – dwarf Japanese maple
• Acer palmatum 'Sango kaku' – coral bark Japanese maple
• Acer palmatum 'Satsuki Beni' – Japanese maple
• Acer palmatum 'Scarlet Princess' – dissectum Japanese maple
• Acer palmatum 'Seigai' – dwarf Japanese maple
• Acer palmatum 'Seiryu' – Japanese maple
• Acer palmatum 'Seiun kaku' – dwarf Japanese maple
• Acer palmatum 'Sekka Yatsubusa' – green-leaf Japanese maple
• Acer palmatum 'Shaina' – dwarf purple-leaf Japanese maple
• Acer palmatum 'Sherwood Flame' – purple-leaf Japanese maple
• Acer palmatum 'Shigitatsu sawa' – variegated Japanese maple
• Acer palmatum 'Shishi Yatsubusa' – dwarf Japanese maple
• Acer palmatum 'Shishigashira' – lion's-mane Japanese maple
• Acer palmatum 'Spring Delight' – Japanese maple
• Acer palmatum 'Sumi Nagashi' – purple-leaf Japanese maple
• Acer palmatum 'Summer Gold' – gold-leaf Japanese maple
• Acer palmatum 'Syuka' – Japanese maple
• Acer palmatum 'Tama Hime' – dwarf Japanese maple
• Acer palmatum 'Tamuke yama' – red lace-leaf Japanese maple
• Acer palmatum 'Tiny Tim' – Japanese maple
• Acer palmatum 'Trompenburg' – purple leaf Japanese maple
• Acer palmatum 'Tsukasa Silhouette' – columnar Japanese maple
• Acer palmatum 'Ueno Homare' – Japanese maple
• Acer palmatum 'Ukigumo' – Japanese maple
• Acer palmatum 'Wabito' – Japanese maple
• Acer palmatum 'Waterfall' – Japanese maple
• Acer palmatum 'Wildfire' – Japanese maple
• Acer palmatum 'Wilson's Pink Dwarf' – Japanese maple
• Acer palmatum 'Wou Nishiki' – Japanese maple
• Acer palmatum 'Yellow Threads' – Japanese maple
• Acer palmatum 'Yubae' – variegated purple-leaf Japanese maple
• Acer pauciflorum – maple
• Acer pentaphyllum – five-lobe maple
• Acer pentaphyllum (NSW genetics)
• Acer pictum 'Usugumo' – variegated painted maple
• Acer pilosum var. stenolobum – stencilled maple
• Acer platanoides 'Ruby's Joy' – Norway maple
• Acer pseudoplatanus 'Simon-Louis Frères' – variegated sycamore maple
• Acer pseudosieboldianum × A. palmatum – hybrid Japanese maple
• Acer pseudosieboldianum var. microsieboldianum – Korean maple
• Acer pseudosieboldianum subsp. takesimense – Ulleung-Do maple
• Acer pubinerve – Chinese maple
• Acer pubipalmatum
• Acer robustum – maple
• Acer rubrum 'Candy Ice' – red maple
• Acer rubrum 'New World' – red maple
• Acer saccharinum 'Born's Gracious' – silver maple
• Acer saccharinum 'JFS H1' – Symatree silver maple
• Acer saccharum 'Barrett Cole' – Apollo sugar maple
• Acer saccharum 'Flax Mill Majesty' – sugar maple
• Acer saccharum 'Millane Dwarf' – sugar maple
• Acer saccharum 'Reba' – Belle Tower sugar maple
• Acer saccharum 'Whit XLIX' – Powder Keg sugar maple
• Acer sempervirens – Cretan maple
• Acer serrulatum – Taiwan maple
• Acer shirasawanum 'Jordan' – golden full moon maple
• Acer shirasawanum 'Munn 001' – Moonrise full moon maple
• Acer shirasawanum 'Palmatifolium' – Shirasawa maple
• Acer shirasawanum var. tenuifolium 'Keikan Zan' – fullmoon maple
• Acer shirasawanum 'Yasemin' – full moon maple
• Acer sieboldianum 'Seki-no-kegon' – Siebold's maple
• Acer skutchii – Mexican mountain sugar maple
• Acer skutchii 'Tequila Sunrise' – Mexican mountain sugar maple
• Acer stachyophyllum subsp. betulifolium – birch-leaf maple
• Acer tataricum subsp. semenovii – Turkestan shrub maple
• Acer tonkinense – Tonkin maple
• Acer truncatum – Shantung maple
• Acer truncatum 'Golden Dragon' – Shantung maple
• Acer tschonoskii – butterfly maple
• Acer ×waxmanii – paperbark maple
• Achillea asplenifolia – yarrow
• Achillea crithmifolia
• Achillea millefolium 'FLORACHYE2' – Milly Rock Yellow Terracotta Improved yarrow
• Achillea millefolium (Montrose rose form) – common yarrow
• Achillea millefolium 'Strawberry Seduction' – yarrow
• Achillea nobilis – noble yarrow
• Achillea 'Sassy Summer Lemon' – yarrow
• Achillea 'Sassy Summer Taffy' – yarrow
• Achillea umbellata – umbellate yarrow
• Acis autumnalis – autumn snowflake
• Aconitum carmichaelii [Arendsii Group] 'Arendsii' – monkshood
• Aconitum fischeri – monkshood
• Acorus gramineus 'Licorice' – golden sweet flag
• Acorus gramineus 'Minimus Aureus' – sweet flag
• Acorus gramineus 'Oborozuki' – variegated sweet flag
• Acorus gramineus 'Ogon' – sweet flag
• Actinidia arguta (variegated) – hardy kiwi
• Actinidia chinensis var. setosa – hardy kiwi
• Actinidia chinensis 'Vincent' (female) – kiwi fruit
• Actinidia kolomikta 'September Sun'
• Adenophora – bellflower
• Adenophora nikoensis
• Adiantum aleuticum 'Imbricatum' – western maidenhair fern
• Adiantum capillus-veneris 'Alabama Lace' – maidenhair fern
• Adiantum capillus-veneris 'Bermuda Run' – maidenhair fern
• Adiantum capillus-veneris 'Falling Waters' – maidenhair fern
• Adiantum capillus-veneris 'Fan Dance' – maidenhair fern
• Adiantum caudatum – walking maidenhair fern
• Adiantum ×mairisii – hybrid maidenhair fern
• Adina rubella (purple flower) – Chinese buttonbush
• Adinandra glischroloma
• Adinandra millettii
• Adinandra millettii (ABGG red purple clone)
• Aeschynanthus buxifolius – box-leaf lipstick plant
• Aeschynanthus aff. buxifolius
• Aesculus 'Bergeson' – Prairie Torch buckeye
• Aesculus californica – California buckeye
• Aesculus californica 'Canyon Pink' – California buckeye
• Aesculus ×carnea 'Rosea' – red horse chestnut
• Aesculus ×carnea 'Variegata' – variegated red horse chestnut
• Aesculus ×carnea (variegated) – red horsechestnut
• Aesculus chinensis – Chinese horse chestnut
• Aesculus chinensis var. wilsonii – Wilson's horse chestnut
• Aesculus indica 'Sydney Pearce' – pink Indian horse chestnut
• Aesculus ×mutabilis – hybrid buckeye
• Aesculus ×mutabilis 'Induta' – hybrid buckeye
• Aesculus parviflora – bottlebrush buckeye
• Aesculus parviflora f. serotina – late bottlebrush buckeye
• Aesculus pavia 'Fishtail' – red buckeye
• Aesculus pavia var. pavia – red buckeye
• Aesculus pavia (peach flower)
• Aesculus pavia 'Red Baron' – red buckeye
• Aesculus pavia 'Splendens' – red buckeye
• Aesculus turbinata 'Marble Chip' – Japanese horse chestnut
• Aesculus wangii – Wang's horsechestnut
• Aesculus ×woerlitzensis – hybrid buckeye
• Aethionema armenum
• Aethionema saxatile – stonecress
• Aethionema subulatum
• Agapanthus 'Blue Yonder' – Blue Yonder lily of the Nile
• Agapanthus 'Early Blue'
• Agapanthus 'Galaxy White' – lily of the nile
• Agapanthus 'Stevie's Wonder' – lily of the Nile
• Agapanthus 'Summer Skies' – lily-of-the-Nile
• Agapanthus 'White Heaven'
• Agarista populifolia – Florida leucothoe
• Agarista populifolia 'Taylor's Treasure' – Leprechaun Florida leucothoe
• Agastache 'Agapk' (Beelicious Pink)
• Agastache 'Crazy Fortune'
• Agastache 'Guava Lava' – anise hyssop
• Agastache 'Kudos Coral'
• Agastache mexicana 'Balsumlilac' – Summerlong Lilac Mexican giant hyssop
• Agathis macrophylla
• Agave asperrima – rough century plant
• Agave 'Bluebell Giants' – century plant
• Agave bracteosa 'Octopussy' – bracted century plant
• Agave bracteosa 'Squidget' – dwarf bracted century plant
• Agave 'Crazy Horse' – century plant
• Agave cryptica – century plant
• Agave 'Durango Fandango' – century plant
• Agave flexispina – century plant
• Agave 'Funky Toes' – century plant
• Agave ×glomeruliflora – Chisos mountains century plant
• Agave gracilipes – slimfoot century plant
• Agave 'Huasteca Giant' – century plant
• Agave isthmensis 'Kabuto Gani' – century plant
• Agave lechuguilla – shin dagger
• Agave lophantha – thorn-crested century plant
• Agave lophantha × A. salmiana var. ferox 'Logan Calhoun' – hybrid century plant
• Agave lophantha 'La Bufa Baby' – thorn-crested century plant
• Agave lophantha 'Miniskirt' – thorn-crested century plant
• Agave lophantha 'Quadricolor' – thorn-crested century plant
• Agave 'Mr. Ripple' – hybrid century plant
• Agave multifilifera 'Basaseachic Falls' – chahuiqui
• Agave ocahui var. ocahui – ocahui
• Agave ovatifolia – whale's tongue agave
• Agave ovatifolia 'Frosty Blue' – whale's tongue agave
• Agave pablocarrilloi 'Baby Booties' – gypsum century plant
• Agave palmeri 'Cutty Shark' – Palmer's century plant
• Agave parryi var. huachucensis – Huachuca century plant
• Agave parryi var. huachucensis 'Excelsior' – variegated Huachuca century plant
• Agave parryi 'J.C. Raulston' – century plant
• Agave parryi subsp. neomexicana 'Culberson Giant' – New Mexico century plant
• Agave parviflora – small-flowered century plant
• Agave salmiana – century plant
• Agave salmiana var. ferox 'Bellville' – giant century plant
• Agave salmiana var. ferox 'Logan Calhoun' – giant century plant
• Agave striata – narrow-leaved century plant
• Agave striata var. striata – narrow-leaved century plant
• Agave 'Twisted Tongue' – century plant
• Agave utahensis subsp. kaibabensis – Utah century plant
• Agave victoriae-reginae – Queen Victoria century plant
• Agave victoriae-reginae 'Bustamonte' – Queen Victoria century plant
• Ageratina ligustrina – privet-leaved snakeroot
• Ailanthus giraldii – Giraldi's tree of heaven
• Ajania × Chrysanthemum – garden chrysanthemum
• Ajania pacifica – silver and gold chrysanthemum
• Ajuga 'Cordial Canary' – Feathered Friends carpet bugle
• Ajuga 'Fierce Falcon' – Feathered Friends ajuga
• Ajuga genevensis – blue bugle
• Ajuga incisa 'Bikun' – carpet bugle
• Ajuga incisa 'Blue Enigma' – giant bugle
• Ajuga 'Noble Nightingale' – Feathered Friends carpet bugle
• Ajuga 'Parrot Paradise' – Feathered Friends carpet bugle
• Ajuga pyramidalis 'Metallica Crispa' – pyramid bugle
• Ajuga reptans – carpet bugle
• Ajuga reptans 'Assaj1' – Princess Elsa carpet bugle
• Ajuga reptans 'Binblasca' – Black Scallop black carpet bugle
• Ajuga reptans 'Planet Zork' – carpet bugle
• Ajuga tenorei 'Valfredda' – Chocolate Chip carpet bugle
• Ajuga 'Tropical Toucan' – Feathered Friends carpet bugle
• Akebia longeracemosa – chocolate vine
• Akebia quinata (silver overlay) – variegated chocolate vine
• Akebia trifoliata – three-finger akebia
• Akebia trifoliata (variegated) – variegated three-finger akebia
• Alangium chinense
• Alangium platanifolium – alangium
• Albizia coreana – Korean mimosa
• Albizia julibrissin (ex. 'Summer Chocolate') – mimosa
• Albizia julibrissin 'Fukuba Shidare' – weeping mimosa
• Albuca flaccida
• Albuca shawii
• Allium – flowering onion
• Allium altyncolicum
• Allium 'Ambassador'
• Allium amethystinum – drumstick allium
• Allium ampeloprasum var. ampeloprasum – great-head garlic
• Allium atropurpureum
• Allium 'Bubble Bath' – ornamental onion
• Allium canadense var. florosum 'White Flag' – meadow garlic
• Allium carolinianum – stout alpine onion
• Allium cepa 'Medusa' – ornamental onion
• Allium christophii
• Allium cristophii – star of Persia
• Allium cyaneum
• Allium cyrilli – Cyrillo's onion
• Allium 'Firmament'
• Allium flavum
• Allium giganteum
• Allium (hybrid)
• Allium jesdianum 'Akbulak'
• Allium jesdianum 'Early Emperor'
• Allium karataviense – Turkistan onion
• Allium 'Miami' – ornamental onion
• Allium 'Millennium' – ornamental onion
• Allium moly 'Jeannine'
• Allium nevskianum
• Allium nutans – Siberian chives
• Allium nutans 'Pam Harper' – steppe onion
• Allium 'Pink Feathers' – ornamental onion
• Allium 'Pink Planet'
• Allium aff. plurifoliatum
• Allium ×proliferum – Egyptian walking onion
• Allium pskemense
• Allium 'Purple Sensation'
• Allium schubertii
• Allium senescens 'Glauca'
• Allium 'Serendipity' – ornamental onion
• Allium 'Silver Spring'
• Allium sphaerocephalon – drumstick leek
• Allium stipitatum 'Violet Beauty'
• Allium 'Sugar Melt' – ornamental onion
• Allium 'Summer Drummer'
• Allium 'Summer Pink' – ornamental onion
• Allium texanum – Texas onioni
• Allium thunbergii
• Allium triquetrum – three-cornered leek
• Allium tuberosum – garlic chives
• Allium virgunculae var. kiiense
• Allium 'Yellow Fantasy'
• Alocasia 'Architexture' – elephant ear
• Alocasia cucullata 'Moon Landing' – variegated hooded dwarf elephant ear
• Alocasia 'Mayan Mask' – elephant ear
• Alocasia odora
• Alocasia 'Portodora' – hybrid upright elephant ear
• Alocasia 'Regal Shields' – upright elephant ear
• Aloe aristata
• Aloe maculata 'Fort Worth' – soap aloe
• Aloe microstigma
• Aloysia gratissima – whitebrush
• Aloysia gratissima 'Punky Brewster' – whitebrush
• Alpinia – ginger
• Alpinia japonica – ginger lily
• Alpinia japonica 'Green Waves' – ginger lily
• Alpinia koshunensis – Taiwan shell ginger
• Alstroemeria 'Casablanca' – Peruvian lily
• Alstroemeria 'Freedom' – red Peruvian lily
• Alstroemeria ×hybrida 'PAS2052' – Jazze Rose Frost Peruvian lily
• Alstroemeria psittacina – parrot lily
• Alstroemeria psittacina 'Variegata' – variegated parrot lily
• Alstroemeria 'Red Valley' – Peruvian lily
• Alstroemeria 'Sweet Laura' – golden Peruvian lily
• Alstroemeria 'Tesronto Imp'
• Alyssoides utriculata
• Alyssum aizoides – yellow alyssum
• Alyssum wulfenianum
• ×Amarcrinum – amarcrinum
• ×Amarcrinum 'Born Free'
• ×Amarcrinum 'Lon Delkin'
• ×Amarcrinum memoria-corsii 'Howardii' – crinodonna
• Amaryllis belladonna
• Amelanchier asiatica var. sinica
• Amelanchier canadensis 'Glenn Form' – Rainbow Pillar Canadian serviceberry
• Amelanchier ×grandiflora 'Silver Fountain' – serviceberry
• Amentotaxus cathayensis – Chinese catkin-yew
• Amentotaxus yunnanensis – Yunnan catkin-yew
• Amorpha georgiana – Georgia false indigo
• Amorphophallus henryi (narrow leaf form)
• Amorphophallus henryi (PDN No. 2)
• Amorphophallus kiusianus – devil's tongue
• Amorphophallus konjac – voodoo lily
• Amorphophallus konjac 'Flesh Gordon' – voodoo lily
• Amorphophallus konjac 'Leo Song' – voodoo lily
• Amorphophallus konjac 'Nightstick' – voodoo lily
• Amorphophallus konjac 'Shattered Glass' – voodoo lily
• Amorphophallus tonkinensis
• Amorphophallus yunnanensis
• Ampelaster carolinianus – climbing aster
• Amsonia 'Blue Ice' – hybrid bluestar
• Amsonia ciliata var. filifolia 'Georgia Pancake' – threadleaf bluestar
• Amsonia ciliata 'Halfway to Arkansas' – fringed bluestar
• Amsonia hubrichtii – threadleaf bluestar
• Amsonia hubrichtii 'Butterscotch' – threadleaf bluestar
• Amsonia hubrichtii (ex. 'Butterscotch')
• Amsonia jonesii – Jones' bluestar
• Amsonia ludoviciana – Louisiana bluestar
• Amsonia orientalis – European bluestar
• Amsonia rigida 'Black's Dwarf' – stiff bluestar
• Amsonia tabernaemontana 'Storm Cloud' – bluestar
• Anacampseros rufescens
• Anatherum ternarium 'Black Mountain' – bluestem
• Andrachne colchica – Caucasian spurge
• Andropogon gerardii 'Lord Snowden' – big bluestem
• Andropogon gerardii 'Red October' – big bluestem
• Andropogon ternarius – splitbeard bluestem
• Andryala agardhii
• Anemone blanda 'Blue Shades' – windflower
• Anemone blanda 'Charmer' – windflower
• Anemone blanda 'Violet Star' – windflower
• Anemone coronaria 'Bride'
• Anemone coronaria 'Mister Fokker' – poppy anemone
• Anemone coronaria 'Mount Everest'
• Anemone coronaria [St. Brigid Group] 'Lord Lieutenant'
• Anemone coronaria [St. Brigid Group] 'The Admiral'
• Anemone coronaria 'Sylphide'
• Anemone coronaria 'The Governor'
• Anemone hupehensis 'Pretty Lady Maria' – windflower
• Anemone lithophila
• Angelica keiskei – Japanese angelica
• Angelica palustris – Marsh angelica
• Anisacanthus quadrifidus var. brevilobus – flame acanthus
• Anisacanthus quadrifidus var. wrightii – flame acanthus
• Anisacanthus quadrifidus var. wrightii 'Chihuahua Compact' – flame acanthus
• Anisacanthus quadrifidus var. wrightii 'Pumpkin' – flame anisacanthus
• Anthericum liliago – St Bernard's lily
• Anthyllis barba-jovis
• Antirrhinum australe
• Antirrhinum barrelieri – Spanish snapdragon
• Antirrhinum braun-blanquetii
• Antirrhinum hispanicum – Spanish snapdragon
• Aphananthe aspera – muku tree
• Aphyllanthes monspeliensis (LD Form)
• Apios americana
• Aquilegia – columbine
• Aquilegia atrata
• Aquilegia baluchistanica
• Aquilegia buergeriana (dwarf form) – dwarf columbine
• Aquilegia caerulea – Kirigami Light Blue & White bicolor columbine
• Aquilegia caerulea – Kirigami Red & White bicolor columbine
• Aquilegia canadensis – wild columbine
• Aquilegia fragrans – sweet-scented columbine
• Aquilegia grahamii
• Aquilegia nigricans – columbine
• Aquilegia oxysepala var. kansuensis – Oriental Columbine
• Aquilegia parviflora
• Aquilegia ×puryearana 'Bernice Ikins' – blazing stars columbine
• Aquilegia 'Roman Bronze'
• Aquilegia thalictrifolia
• Aquilegia transsilvanica – columbine
• Aquilegia vulgaris – columbine
• Aquilegia yabeana
• Arachniodes davalliaeformis – shiny bristle fern
• Arachniodes simplicior – east Indian holly fern
• Arachniodes standishii – upside-down fern
• Araiostegia pseudocystopteris – rabbit's foot fern
• Aralia cordata 'Sun King' – Japanese spikenard
• Araucaria araucana × A. angustifolia – hybrid monkey puzzle tree
• Arbutus unedo 'Compacta' – compact strawberry tree
• Arbutus unedo 'Oktoberfest' – strawberry tree
• Arctostaphylos 'Austin Griffiths'
• Arctostaphylos densiflora 'Howard McMinn'
• Arctostaphylos 'Pacific Mist' – manzanita
• Ardisia – coralberry
• Ardisia crenata – Adam's Curly coralberry
• Ardisia crenata 'Kotobuki' – coralberry
• Ardisia crenata (white-fruited) – coralberry
• Ardisia japonica 'Andre the Giant' – marlberry
• Ardisia japonica 'Angyo Pixie' – marlberry
• Ardisia japonica 'Beni Yukiji'
• Ardisia japonica 'Chirimen' – dwarf marlberry
• Ardisia japonica 'El Luchador' – marlberry
• Ardisia japonica 'Hakuou' – White King variegated marlberry
• Ardisia japonica 'Hanatei' – marlberry
• Ardisia japonica (narrow leaf) – narrow leaf ardisia
• Ardisia japonica 'Nishiki'
• Ardisia japonica 'Takasago' – marlberry
• Ardisia japonica (variegated)
• Ardisia japonica (Yabukoji) – marlberry
• Ardisia polycephala – Wallich's Coralberry
• Argemone platyceras 'Busy Bee' – prickly poppy
• Arisaema amurense – cobra-lily
• Arisaema candidissimum (White form) – white cobra lily
• Arisaema consanguineum – Himalayan cobra lily
• Arisaema aff. consanguineum – Himalayan cobra lily
• Arisaema 'Crossing Over' – Jack-in-the-Pulpit
• Arisaema dracontium – green dragon
• Arisaema fargesii – Farges's cobra lily
• Arisaema flavum – yellow cobra lily
• Arisaema ilanense – cobra lily
• Arisaema kiushianum – Kyushu cobra-lily
• Arisaema ovale
• Arisaema pingbianense
• Arisaema ringens – Japanese cobra lily
• Arisaema sikokianum (Graham Ray form, maybe variegated)
• Arisaema taiwanense – Formosan cobra lily
• Arisaema taiwanense (silver sheen) – Formosan cobra lily
• Arisaema thunbergii subsp. urashima – Urashima cobra lily
• Aristea anceps (Silver Hills form)
• Aristea ensifolia – blue stars
• Aristolochia fimbriata – hardy Dutchman's pipe
• Aronia melanocarpa 'UCONNAM012' – Ground Hug dwarf chokeberry
• Aronia melanocarpa 'UCONNAM165' – Low Scape Mound dwarf chokeberry
• Aronia ×prunifolia 'Wisley' – purple chokeberry
• Artemisia molinieri – Molinier's wormwood
• Artemisia 'Powis Castle' – Powis Castle artemisia
• Arum concinnatum
• Arum cyrenaicum × A. concinnatum
• Arum dioscoridis
• Arum italicum × Arum italicum subsp. neglectum 'Chameleon'
• Arum italicum 'Billy Hunt' – Italian arum
• Arum italicum 'Dapples' – Italian arum
• Arum italicum 'Gold Rush' – Italian arum
• Arum italicum 'Grandma' – Italian arum
• Arum italicum subsp. italicum – Italian arum
• Arum italicum 'Jet Black Wonder' – Italian arum
• Arum italicum 'Legs' – Italian arum
• Arum italicum (No. 1)
• Arum italicum (No. 2)
• Arum italicum 'Winter Angel'
• Arum pictum – autumn-flowering arum
• Arundo donax 'Golden Chain' – giant reed
• Arundo donax 'Peppermint Stick' – giant reed
• Arundo formosana 'Variegata' – giant reed
• Asarum – wild ginger
• Asarum albomaculatum – wild ginger
• Asarum arifolium 'Brunswick Stew' – arrowhead wild ginger
• Asarum asaroides – wild ginger
• Asarum asperum – wild ginger
• Asarum canadense – common wild-ginger
• Asarum caudigerum – wild ginger
• Asarum debile – wild ginger
• Asarum europaeum – European wild ginger
• Asarum fauriei var. takaoi – wild ginger
• Asarum fauriei var. takaoi 'Roundabout' – wild ginger
• Asarum harperi
• Asarum harperi (green leaf)
• Asarum hypogynum – little jugs
• Asarum ichangense – wild ginger
• Asarum kumageanum – Japanese wild ginger
• Asarum macranthum – wild ginger
• Asarum macranthum 'On the Mark' – wild ginger
• Asarum maximum – panda face wild ginger
• Asarum maximum 'Ling Ling' – panda face wild ginger
• Asarum nobilissimum 'Crown Royal' – wild ginger
• Asarum nobilissimum 'Deep Throat'
• Asarum nobilissimum 'Iron Butterfly'
• Asarum porphyronotum – glossy-leaf wild ginger
• Asarum porphyronotum var. atrovirens 'Internet' – wild ginger
• Asarum 'Setsu Getsu Ka' – wild ginger
• Asarum speciosum 'Woodlander's Select' – Alabama wild ginger
• Asarum splendens – Chinese wild ginger
• Asarum splendens 'Quicksilver' – wild ginger
• Asarum subglobosum – wild ginger
• Asarum aff. taipingshanianum – wild ginger
• Asarum yakusimense 'Sarlacc' – Yakushima wild ginger
• Asclepias angustifolia 'Sonoita' – narrow leaf milkweed
• Asclepias curassavica 'Monarch's Banquet' – butterfly weed
• Asclepias curassavica 'Red Butterfly' – tropical milkweed
• Asclepias incarnata – swamp milkweed
• Asclepias incarnata 'Cinderella' – swamp milkweed
• Asclepias incarnata 'Ice Ballet' – swamp milkweed
• Asclepias incarnata (Large Marge) – swamp milkweed
• Asclepias perennis – white swamp milkweed
• Asclepias tuberosa – butterfly weed
• Asclepias tuberosa 'Hello Yellow' – butterfly weed
• Asclepias tuberosa subsp. tuberosa – butterfly weed
• Asimina triloba – pawpaw
• Asparagus acutifolius – wild asparagus
• Asparagus africanus – African asparagus
• Asparagus asparagoides – bridal creeper
• Asparagus brachyphyllus – wild asparagus
• Asparagus cochinchinensis – Chinese tuber asparagus
• Asparagus densiflorus 'Hardy Sprengeri'
• Asparagus denudatus – Sprenger's asparagus fern
• Asparagus maritimus
• Asparagus microraphis – asparagus fern
• Asparagus oligoclonos – ornamental asparagus
• Asparagus persicus – asparagus
• Asparagus schoberioides
• Asparagus setaceus
• Asparagus virgatus – broom fern
• Asparagus volubilis
• Asphodeline brevicaulis – short yellow asphodel
• Asphodeline damascena – king's spear
• Asphodeline lutea 'Italian Gold' – king's spear
• Asphodelus ayardii
• Asphodelus fistulosus
• Asphodelus ramosus
• Aspidistra – cast iron plant
• Aspidistra attenuata – cast iron plant
• Aspidistra attenuata 'Small n' Smart' – cast iron plant
• Aspidistra basalis 'Green Jeans' – cast iron plant
• Aspidistra 'China Moon' – cast iron plant
• Aspidistra daibuensis 'Yuli Yummy'
• Aspidistra daibuensis 'Yushan Galaxy' – Yushan galaxy cast iron plant
• Aspidistra (dwarf streaked) – dwarf variegated cast iron plant
• Aspidistra ebianensis – cast iron plant
• Aspidistra ebianensis 'Flowing Fountains' – cast iron plant
• Aspidistra elatior – cast iron plant
• Aspidistra elatior 'Akebono' – gold-stripe cast iron plant
• Aspidistra elatior 'Asahi' – morning sun cast iron plant
• Aspidistra elatior 'Cynthia Johnson'
• Aspidistra elatior (ex. 'Hoshi Zora') – cast iron plant
• Aspidistra elatior 'Fuji-no-mine' – Mt. Fuji cast iron plant
• Aspidistra elatior 'Hoshi Zora' – speckled cast iron plant
• Aspidistra elatior 'Ippin' – variegated cast iron plant
• Aspidistra elatior 'Lennon's Song' – cast iron plant
• Aspidistra elatior 'Morning Frost' – cast iron plant
• Aspidistra elatior 'Okame' – variegated cast iron plant
• Aspidistra elatior 'Sei Ryu Ho'
• Aspidistra elatior 'Snow Cap' – variegated cast iron plant
• Aspidistra elatior 'Stars and Stripes' – cast iron plant
• Aspidistra elatior (striped & spotted) – cast iron plant
• Aspidistra elatior 'Taihou' – cast iron plant
• Aspidistra elatior (white stripes)
• Aspidistra grandiflora 'Big Spotty' – cast iron plant
• Aspidistra (large, pale spots) – cast iron plant
• Aspidistra linearifolia 'Skinny Dippin' – Skinny dippin' cast iron plant
• Aspidistra lutea 'Mai Chau' – cast iron plant
• Aspidistra molendinacea 'Skin Tight Green Jeans' – Skin tight green jeans cast iron plant
• Aspidistra mushaensis 'Spotty Dotty' – cast iron plant
• Aspidistra oblanceifolia 'Nagoya Stars' – speckled cast iron plant
• Aspidistra omeiensis 'Come Pleated' – narrow cast iron plant
• Aspidistra omeiensis 'Jade Ribbons' – cast iron plant
• Aspidistra pulchella – cast iron plant
• Aspidistra retusa 'Nanjing Green' – cast iron plant
• Aspidistra sichuanensis 'Dappled Expectation' – cast iron plant
• Aspidistra sichuanensis 'Ghost Spots' – cast iron plant
• Aspidistra sichuanensis 'Gold Lancer' – cast iron plant
• Aspidistra sichuanensis 'Ichi Moro Ji' – Ichi Moro Ji cast iron plant
• Aspidistra sichuanensis 'Rawhide' – cast iron plant
• Aspidistra sichuanensis 'Spek-tacular' – cast iron plant
• Aspidistra sichuanensis 'Spotty' – cast iron plant
• Aspidistra (spotted) – cast iron plant
• Aspidistra sutepensis 'Doi Inthanon' – cast iron plant
• Aspidistra tonkinensis 'Hanoi Honey' – cast iron plant
• Aspidistra zongbayi 'Emeishan Angel' – cast iron plant
• Asplenium ×ebenoides – scott's spleenwort or dragontail fern
• Asplenium scolopendrium – hart's tongue fern
• Asplenium scolopendrium (Undulatum group) – hart's tongue fern
• Aster ageratoides 'Ashvi' – white mountain aster
• Aster ageratoides 'Ezo Murasaki' – mountain aster
• Aster ageratoides var. scaberulus – mountain aster
• Aster tataricus – Tatarian aster
• Aster tataricus 'Jindai' – dwarf Tatarian aster
• Astilbe longicarpa – false goat's beard
• Astilbe rivularis var. myriantha – myriantha false goat's beard
• Athyrium
• Athyrium brevifrons – lady fern
• Athyrium filix-femina 'Cruciato-cristatum' – lady fern
• Athyrium filix-femina 'Victoriae' – lady fern
• Athyrium 'Ghost' – painted fern
• Athyrium 'Godzilla' – painted fern
• Athyrium niponicum – painted fern
• Athyrium niponicum 'Lemon Cream' – painted fern
• Athyrium niponicum var. pictum – painted fern
• Athyrium niponicum 'Thrill Seeker' – painted fern
• Athyrium otophorum – eared lady fern
• Athyrium otophorum var. okanum – eared lady fern
• Aubrieta parviflora
• Aucuba chinensis – Chinese aucuba
• Aucuba aff. chinensis – Chinese aucuba
• Aucuba japonica – Japanese aucuba
• Aucuba japonica 'Akebono' – Japanese aucuba
• Aucuba japonica 'Big Mamma' – Japanese aucuba
• Aucuba japonica var. borealis – Japanese aucuba
• Aucuba japonica var. borealis 'Honshu' – Japanese aucuba
• Aucuba japonica 'Bouza Nishiki' – Japanese aucuba
• Aucuba japonica 'Cecil-Alice' – variegated Japanese aucuba
• Aucuba japonica (Chicory form) – Japanese aucuba
• Aucuba japonica 'Clear Picture' – Japanese aucuba
• Aucuba japonica 'Clent Wortley Hall' – Japanese aucuba
• Aucuba japonica (contorted variegated) – Japanese aucuba
• Aucuba japonica 'Crotonifolia' – variegated Japanese aucuba
• Aucuba japonica 'Daikoku' – Japanese aucuba
• Aucuba japonica 'Daruma-no-shima' – Japanese aucuba
• Aucuba japonica 'Freckled-face Kid' – variegated Japanese aucuba
• Aucuba japonica 'Fructu Albo' – white-fruited Japanese aucuba
• Aucuba japonica 'Fujikawa' – Mt. Fuji Japanese aucuba
• Aucuba japonica 'Ginsu' – Japanese aucuba
• Aucuba japonica 'Gold Mound' – Japanese aucuba
• Aucuba japonica (gold sectored) – Japanese aucuba
• Aucuba japonica 'Golden Dragon' – Japanese aucuba
• Aucuba japonica 'Golden King' – Japanese aucuba
• Aucuba japonica 'Goldilocks' – Japanese aucuba
• Aucuba japonica 'Hasedera' – Japanese aucuba
• Aucuba japonica 'Hillieri' – Japanese aucuba
• Aucuba japonica 'Hosoba Hoshifu' – Japanese aucuba
• Aucuba japonica ('Hosoba Hoshifu' sport) – Japanese aucuba
• Aucuba japonica 'Jagged Edge' – Japanese aucuba
• Aucuba japonica 'Katoaba' – Japanese aucuba
• Aucuba japonica 'Ki Mi' – Japanese aucuba
• Aucuba japonica 'Koshiji Nishiki' – Japanese aucuba
• Aucuba japonica 'Lancifolia' – Japanese aucuba
• Aucuba japonica (Lane's sawtooth) – Japanese aucuba
• Aucuba japonica (large teeth) – Japanese aucuba
• Aucuba japonica 'Leucocarpa' – white-fruit Japanese aucuba
• Aucuba japonica 'Limbata' – Japanese aucuba
• Aucuba japonica 'Linda Eggins' – Japanese aucuba
• Aucuba japonica f. longifolia – narrowleaf Japanese aucuba
• Aucuba japonica 'Mangetsu Supreme' – Japanese aucuba
• Aucuba japonica 'Marmorata' – Japanese aucuba
• Aucuba japonica 'Meigetsu' – gold-stripe Japanese aucuba
• Aucuba japonica 'Mellow Mushroom' – Japanese aucuba
• Aucuba japonica 'Minuma-Ogon' – Japanese aucuba
• Aucuba japonica 'Moonbright' – Japanese aucuba
• Aucuba japonica 'Mr. Goldstrike' – Japanese aucuba
• Aucuba japonica 'Mr. Wonderful' – dwarf Japanese aucuba
• Aucuba japonica 'Natsu-no-kumo' – Japanese aucuba
• Aucuba japonica 'Night Lights' – Japanese aucuba
• Aucuba japonica 'Ōba Nakafu' – Japanese aucuba
• Aucuba japonica 'Other Daddy' – Japanese aucuba
• Aucuba japonica 'Pacman' – dwarf Japanese aucuba
• Aucuba japonica 'Peachie' – Japanese aucuba
• Aucuba japonica 'Petite Jade' – dwarf Japanese aucuba
• Aucuba japonica 'Rozannie' – Japanese aucuba
• Aucuba japonica 'Salted Pepper' – Japanese aucuba
• Aucuba japonica 'Shilpot' – Pepperpot variegated Japanese aucuba
• Aucuba japonica 'Shogun' – Japanese aucuba
• Aucuba japonica 'Shugetsu' – Japanese aucuba
• Aucuba japonica 'Speckles' – Japanese aucuba
• Aucuba japonica 'Sun Spots' – Japanese aucuba
• Aucuba japonica 'Suruga Benten' – Japanese aucuba
• Aucuba japonica 'Torafu' – Japanese aucuba
• Aucuba japonica (USNA No. 3 - female) – Japanese aucuba
• Aucuba japonica (USNA No. 5 - female) – Japanese aucuba
• Aucuba japonica 'Viridis' – Japanese aucuba
• Aucuba japonica 'White Lace' – Japanese aucuba
• Aucuba japonica (yellow fruit) – Japanese aucuba
• Aucuba omeiensis – Mt. Emei aucuba
• Aucuba omeiensis (Hirose form) – Mt. Emei aucuba
• Auranticarpa rhombifolia – diamond-leaf pittosporum

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B

• Babiana stricta
• Baccharis trimera – carqueja
• Bambusa multiplex 'Fernleaf' – dwarf clumping fernleaf bamboo
• Bambusa multiplex 'Green Giant' – hedge bamboo
• Bambusa textilis 'Kanapaha' – wong chuk
• Baptisia alba var. alba Pendula Group – white wild-indigo
• Baptisia arachnifera × B. simplicifolia – wild-indigo
• Baptisia australis (Roethling blue) – blue wild-indigo
• Baptisia ×bicolor 'Starlite' – Starlite Prairieblues false indigo
• Baptisia 'Blueberry Sundae' – Decadence false indigo
• Baptisia 'Cherries Jubilee' – false indigo
• Baptisia 'Dutch Chocolate' – false indigo
• Baptisia 'Grape Escape' – wild-indigo
• Baptisia (lavender) – false indigo
• Baptisia 'Lemon Meringue' – Decadence yellow wild-indigo
• Baptisia 'Lunar Eclipse' – false indigo
• Baptisia megacarpa – Apalachicola wild-indigo
• Baptisia (pale pink) – false indigo
• Baptisia perfoliata × B. tinctoria – hybrid indigo
• Baptisia 'Purple Smoke' – false indigo
• Baptisia (rock garden dwarf) – wild-indigo
• Baptisia 'Royal Candles' – false indigo
• Baptisia 'Solar Flare' – Prairieblues false indigo
• Baptisia sphaerocarpa 'Screamin' Yellow' – false indigo
• Baptisia sulphurea – pale yellow wild-indigo
• Baptisia 'Vanilla Cream' – Decadence wild-indigo
• Bauhinia – white orchid tree
• Bauhinia forficata – Brazilian orchid tree
• Bauhinia petersiana – Zambezi coffee
• Begonia – begonia
• Begonia algaia – hardy begonia
• Begonia
• Begonia aff. chitoensis – hardy Taiwan begonia
• Begonia chitoensis – hardy Taiwan begonia
• Begonia circumlobata 'Chandler's Hardy' – Shangri-La hardy begonia
• Begonia 'Cotes de Castillon' – hardy begonia
• Begonia cf. coursii – begonia
• Begonia aff. cucullata – hardy begonia
• Begonia emeiensis – hardy begonia
• Begonia 'First Blush'
• Begonia formosana – hardy begonia
• Begonia formosana f. albomaculata
• Begonia grandis subsp. evansiana – hardy begonia
• Begonia grandis 'Pink Teardrops' – hardy begonia
• Begonia grandis subsp. sinensis – hardy begonia
• Begonia henryi – hardy begonia
• Begonia heracleifolia 'Nigricans'
• Begonia 'Little Brother Montgomery' – hardy begonia
• Begonia 'Little Moon'
• Begonia aff. palmata – hardy begonia
• Begonia pedatifida – hardy foot begonia
• Begonia 'Plum Paisley' – begonia
• Begonia 'Red China' – begonia
• Begonia aff. silletensis – hardy begonia
• Belamcanda
• Belamcanda chinensis – blackberry lily
• Belamcanda chinensis 'Gone with the Wind'
• Belamcanda chinensis 'Hello Yellow' – yellow blackberry lily
• Bellevalia paradoxa
• Berberis – barberry
• Berberis candidula – paleleaf barberry
• Berberis chinensis – Chinese barberry
• Berberis ×gladwynensis 'William Penn' – Gladwyne barberry
• Berberis henryana – Henry's barberry
• Berberis julianae 'Spring Glory' – wintergreen barberry
• Berberis lempergiana – Chinese wintergreen barberry
• Berberis ×media 'Parkjuweel' – jeweled barberry
• Berberis ×media 'Red Jewel' – barberry
• Berberis 'Ncbx1' – Sunjoy Todo barberry
• Berberis ×ottawensis 'Concorde' – dwarf Ottawa barberry
• Berberis replicata – barberry
• Berberis thunbergii var. atropurpurea 'Bailone' – Ruby Carousel purple-leaf Japanese barberry
• Berberis thunbergii var. atropurpurea 'Marshall's Upright' – upright purple-leaf Japanese barberry
• Berberis thunbergii var. atropurpurea 'Red Rocket' – upright purple-leaf Japanese barberry
• Berberis thunbergii 'Aurea' – Japanese barberry
• Berberis thunbergii 'Kelleriis' – Japanese barberry
• Berberis umbellata – Himalayan barberry
• Berberis vernae – barberry
• Berberis wilsoniae var. stapfiana – Wilson barberry
• Berberis wilsoniae var. subcaulialata – Wilson barberry
• Berberis ×wisleyensis – Wisley barberry
• Berkheya purpurea – purple berkheya
• Berlandiera lyrata – lyreleaf chocolate daisy
• Berlandiera pumila 'Chocoholic' – chocolate flower
• Berlandiera subacaulis – Florida greeneyes
• ×Beschfreda 'Purple Passion'
• Beschorneria (B. dekosteriana × B. septentrionalis) × B. septentrionalis – hybrid false red agave
• Beschorneria septentrionalis – false red agave
• Beschorneria (septentrionalis hybrid)
• Beschorneria yuccoides – amole
• Betula nigra 'Dickinson' – Northern Tribute river birch
• Betula nigra 'Heritage' – river birch
• Betula nigra 'Little King' – Fox Valley dwarf river birch
• Betula nigra 'Studetec' – Tecumseh Compact compact river birch
• Betula pumila – bog birch
• Biarum tenuifolium
• Bignonia callistegioides – lavender trumpet vine
• Bignonia capreolata 'Atrosanguinea' – crossvine
• Bignonia capreolata 'Helen Fredel' – crossvine
• Bignonia capreolata 'Jekyll' – crossvine
• Bignonia capreolata 'Tangerine Beauty' – crossvine
• Bischofia polycarpa – Chinese bishopwood
• Blechnum chilense
• Blepharocalyx salicifolius
• Blepharocalyx salicifolius (orange fruit)
• Blepharocalyx salicifolius (red fruit)
• Blepharocalyx salicifolius (tiny leaf)
• Blepharocalyx salicifolius (yellow)
• Bletilla 'Candles in the Wind'
• Bletilla ochracea 'Summer Sunshine' – Chinese butterfly orchid
• Bletilla striata 'Albostriata' – variegated Chinese ground orchid
• Bletilla striata 'Big Bob' – Chinese ground orchid
• Bletilla striata 'Ogon' – Chinese ground orchid
• Bletilla Yokohama gx 'Sweet Lips' – ground orchid
• Boltonia asteroides
• Bomarea acutifolia
• Bomarea × Alstroemeria
• Bomarea edulis – salsilla
• Bouteloua 'Zig Zag' – blue grama grass
• Brassaiopsis
• Brassaiopsis (cf. bodinieri)
• Brassaiopsis dumicola
• Briggsia longipes
• Brucea javanica – lada pahit
• Brugmansia 'Betty Marshall' – white angel's trumpet
• Brugmansia 'Inca Sun' – dwarf angel's trumpet
• Brunnera 'Alexandria' – Siberian bugloss
• Brunnera macrophylla 'Emerald Mist' – variegated Siberian bugloss
• Buddleja 'Balchryeel' – Chrysalis Steel Blue butterfly bush
• Buddleja 'Balchryink' – Chrysalis Pink butterfly bush
• Buddleja 'Balchrylu' – Chrysalis Blue butterfly bush
• Buddleja 'Balchryurp' – Chrysalis Purple butterfly bush
• Buddleja 'Blue Chip Jr.' – Lo & Behold butterfly bush
• Buddleja 'Blue Chip' – Lo & Behold compact butterfly bush
• Buddleja cordata – Mexican butterfly bush
• Buddleja davidii 'Evil Ways' – golden butterfly bush
• Buddleja davidii 'Opera' – butterfly bush
• Buddleja davidii 'Potter's Purple' – butterfly bush
• Buddleja davidii 'SMNBDPT' – Pugster Pink dwarf butterfly bush
• Buddleja fallowiana – butterfly bush
• Buddleja (from Brazil) – butterfly bush
• Buddleja 'Grand Cascade' – butterfly bush
• Buddleja 'ILVOargus2' – Inspired Violet butterfly bush
• Buddleja 'Lavender Cupcake' – compact butterfly bush
• Buddleja 'Lilac Cascade' – butterfly bush
• Buddleja loricata – African butterfly bush
• Buddleja 'Miss Ruby' – compact butterfly bush
• Buddleja 'Miss Violet' – butterfly bush
• Buddleja 'Orange Scepter'
• Buddleja 'Pink Cascade' – butterfly bush
• Buddleja 'Pink Micro Chip' – Lo & Behold dwarf butterfly bush
• Buddleja 'Prince Charming' – butterfly bush
• Buddleja salviifolia – South African sage-wood
• Buddleja stachyoides – Argentine butterfly bush
• Buddleja 'Violet Cascade' – butterfly bush
• Buddleja 'Violet Eyes' – butterfly bush
• Bulbine abyssinica – bushy bulbine
• Bulbine narcissifolia
• Butia capitata – pindo palm
• Buxus balearica – Balearic boxwood
• Buxus bodinieri – Bodinier's boxwood
• Buxus 'Conrowe' – Gordo compact boxwood
• Buxus 'Glencoe' – Chicagoland Green boxwood
• Buxus 'Green Mound' – Sheridan hybrid boxwood
• Buxus 'Green Mountain' – Sheridan hybrid boxwood
• Buxus 'Green Velvet' – Sheridan hybrid boxwood
• Buxus harlandii – Harland boxwood
• Buxus henryi – Henry's boxwood
• Buxus 'Little Missy' – dwarf boxwood
• Buxus microphylla 'Compacta' – littleleaf boxwood
• Buxus microphylla 'Curly Locks' – littleleaf boxwood
• Buxus microphylla 'File Leaf' – littleleaf boxwood
• Buxus microphylla 'Franklin's Gem' – littleleaf boxwood
• Buxus microphylla 'Grace Hendrick Phillips' – littleleaf boxwood
• Buxus microphylla 'Green Pillow' – littleleaf boxwood
• Buxus microphylla 'Helen Whiting' – littleleaf boxwood
• Buxus microphylla 'Henry Hohman' – littleleaf boxwood
• Buxus microphylla var. japonica – Japanese boxwood
• Buxus microphylla var. japonica 'Borderline' – Japanese boxwood
• Buxus microphylla var. japonica 'Green Beauty' – Japanese boxwood
• Buxus microphylla var. japonica 'Grejade' – Baby Jade Japanese boxwood
• Buxus microphylla var. japonica 'Jim Stauffer' – Japanese boxwood
• Buxus microphylla var. japonica 'Morris Dwarf' – Japanese boxwood
• Buxus microphylla var. japonica 'Morris Midget' – Japanese boxwood
• Buxus microphylla var. japonica 'Unraveled' – Japanese boxwood
• Buxus microphylla 'John Baldwin' – littleleaf boxwood
• Buxus microphylla 'Miss Jones' – littleleaf boxwood
• Buxus microphylla 'Peergold' – Golden Dream littleleaf boxwood
• Buxus microphylla var. riparia – littleleaf boxwood
• Buxus microphylla 'Sunnyside' – littleleaf boxwood
• Buxus 'Prostrate3' – Flat-tery dwarf boxwood
• Buxus sempervirens – common boxwood
• Buxus sempervirens 'Agram' – common boxwood
• Buxus sempervirens 'Angel's Gift' – common boxwood
• Buxus sempervirens 'Angustifolia' – common boxwood
• Buxus sempervirens 'Arctic Emerald' – common boxwood
• Buxus sempervirens 'Argenteo-variegata' – common boxwood
• Buxus sempervirens 'Aristocrat' – common boxwood
• Buxus sempervirens 'Aurea Pendula' – common boxwood
• Buxus sempervirens 'Aureo-variegata' – common boxwood
• Buxus sempervirens 'Belleville' – common boxwood
• Buxus sempervirens 'Berlin' – common boxwood
• Buxus sempervirens 'Decussata' – common boxwood
• Buxus sempervirens 'Dee Runk' – common boxwood
• Buxus sempervirens 'Edgar Anderson' – common boxwood
• Buxus sempervirens 'Emerald Gumdrop' – common boxwood
• Buxus sempervirens 'Fastigiata' – common boxwood
• Buxus sempervirens 'Glauca' – common boxwood
• Buxus sempervirens 'Handsworthii' – common boxwood
• Buxus sempervirens 'Henry Shaw' – common boxwood
• Buxus sempervirens 'Highlander' – common boxwood
• Buxus sempervirens 'Inglis' – common boxwood
• Buxus sempervirens 'Latifolia Macrophylla' – common boxwood
• Buxus sempervirens 'Latifolia Maculata' – common boxwood
• Buxus sempervirens 'Memorial' – common boxwood
• Buxus sempervirens 'Myosotidifolia' – common boxwood
• Buxus sempervirens 'Myrtifolia' – common boxwood
• Buxus sempervirens 'Northland' – common boxwood
• Buxus sempervirens 'Pendula' – common boxwood
• Buxus sempervirens 'Ponteyi' – common boxwood
• Buxus sempervirens 'Pullman' – common boxwood
• Buxus sempervirens 'Pyramidalis' – common boxwood
• Buxus sempervirens 'Rosmarinifolius' – common boxwood
• Buxus sempervirens 'Rotundifolia' – common boxwood
• Buxus sempervirens 'Salicifolia' – common boxwood
• Buxus sempervirens 'Ste. Geneve' – common boxwood
• Buxus sempervirens 'Suffruticosa' – common boxwood
• Buxus sempervirens 'Valentine' – common boxwood
• Buxus sempervirens 'Vardar Valley' – common boxwood
• Buxus sempervirens 'Wanford Page' – common boxwood
• Buxus sempervirens 'Welleri' – common boxwood
• Buxus sempervirens 'Woodland' – common boxwood
• Buxus sinica – Korean boxwood
• Buxus sinica var. insularis – Korean boxwood
• Buxus sinica var. insularis 'Justin Brouwers' – Korean boxwood
• Buxus sinica var. insularis 'Pincushion' – Korean boxwood
• Buxus sinica var. insularis (spreading dwarf) – Korean boxwood
• Buxus sinica var. insularis 'Sunburst' – Korean boxwood
• Buxus sinica var. insularis 'Tall Boy' – Korean boxwood
• Buxus sinica var. insularis 'Wintergreen' – Korean boxwood
• Buxus sinica 'Kinsha' – Korean boxwood
• Buxus wallichiana – Himalayan boxwood

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C

• Caesalpinia gilliesii – desert bird-of-paradise
• Caladium 'Celebration'
• Calamagrostis ×acutiflora 'Avalanche' – feather reed grass
• Calamagrostis arundinacea – Korean feather reed grass
• Calamintha 'Marvelette Blue' – calamint
• Calibrachoa – million bells
• Calibrachoa 'KLECA22915'
• Calibrachoa – Superbells Blue Moon Punch calibrachoa
• Calibrachoa
• Calibrachoa
• Calibrachoa
• Callicarpa – beautyberry
• Callicarpa acuminata – Mexican beautyberry
• Callicarpa americana 'Berries and Cream' – beautyberry
• Callicarpa americana 'Buddy's Dwarf' – beautyberry
• Callicarpa americana var. lactea – beautyberry
• Callicarpa americana 'Welch's Pink' – beautyberry
• Callicarpa bodinieri var. giraldii 'Profusion' – Bodinier beautyberry
• Callicarpa brevipes – beautyberry
• Callicarpa 'Cardinal' – beautyberry
• Callicarpa chejuensis – Korean beautyberry
• Callicarpa dichotoma 'Issai' – purple beautyberry
• Callicarpa dichotoma 'Spring Gold' – purple beautyberry
• Callicarpa formosana – Formosan beautyberry
• Callicarpa japonica – Japanese beautyberry
• Callicarpa japonica 'Heavy Berry' – Japanese beautyberry
• Callicarpa japonica 'Inagali' – variegated Japanese beautyberry
• Callicarpa japonica var. luxurians – Japanese beautyberry
• Callicarpa japonica 'Shiji Murasaki' – Wine Spritzer beautyberry
• Callicarpa kwangtungensis – Guangdong beautyberry
• Callicarpa aff. luteopunctata (white fruited)
• Callicarpa macrophylla – bigleaf beautyberry
• Callicarpa membranacea
• Callicarpa 'Moore Purple' – beautyberry
• Callicarpa 'NCCX1' – Purple Pearls beautyberry
• Callicarpa oshimensis – beautyberry
• Callicarpa rubella – beautyberry
• Callicarpa rubella var. rubella – beautyberry
• Callirhoe involucrata – winecup
• Callistemon brachyandrus – prickly bottlebrush
• Callistemon pityoides – alpine bottlebrush
• Callistemon pityoides 'Mt. Kosciuszko' – alpine bottlebrush
• Callistemon 'Woodlander's Hardy' – bottlebrush
• Calocedrus decurrens 'Berrima Gold' – California incense-cedar
• Calocedrus formosana – Formosan incense-cedar
• Calocedrus macrolepis var. macrolepis – Chinese incense-cedar
• Calochortus 'Cupido'
• Calopogon tuberosus – tuberous grass pink orchid
• Calycanthus 'Aphrodite' – hybrid sweetshrub
• Calycanthus chinensis – allspice
• Calycanthus floridus 'Athens' – yellow common sweetshrub
• Calycanthus floridus var. glaucus – eastern sweetshrub
• Calycanthus floridus var. glaucus 'Burgundy Spice' – eastern sweetshrub
• Calycanthus floridus var. glaucus 'Purpureus' – eastern sweetshrub
• Calycanthus floridus 'Michael Lindsay' – common sweetshrub
• Calycanthus occidentalis – western sweetshrub
• Calycanthus ×raulstonii 'Dark Secret' – raulston allspice
• Calycanthus ×raulstonii 'Hartlage Wine' – Raulston allspice
• Calycanthus 'Venus' – hybrid sweetshrub
• Camassia 'Blue Candle'
• Camassia cusickii – Cussick's camas
• Camassia cusickii 'Zwanenburg'
• Camassia leichtlinii 'Alba' – great camas
• Camassia leichtlinii 'Sacajawea' – great camas
• Camassia leichtlinii 'Semiplena' – great camas
• Camassia quamash – small camas
• Camassia quamash 'Blue Melody' – small camas
• Camellia 'Arctic Dawn'
• Camellia 'Autumn Spirit' – sasanqua camellia
• Camellia brevistyla × C. sasanqua 'Green 09-003' – hybrid camellia
• Camellia brevistyla f. rubida – short-styled camellia
• Camellia 'Carolina Moonmist' – Cochran camellia
• Camellia caudata – long-tailed tea
• Camellia 'Cinnamon Cindy' – Ackerman camellia
• Camellia crapnelliana – Crapnell's camellia
• Camellia 'Crimson Candles' – camellia
• Camellia fluviatilis – riverine camellia
• Camellia fraterna – small-flowered camellia
• Camellia gaudichaudii
• Camellia 'Green 98-013'
• Camellia ×hiemalis 'Dazzler' – camellia
• Camellia ×hiemalis 'Green's Blues' – camellia
• Camellia ×hiemalis 'Rose of Autumn' – camellia
• Camellia ×hiemalis 'Shishi Gashira' – camellia
• Camellia japonica – Japanese camellia
• Camellia japonica 'Anacostia' – Japanese camellia
• Camellia japonica 'April Dawn' – Japanese camellia
• Camellia japonica 'April Tryst' – Japanese camellia
• Camellia japonica 'Benten-kagura' – Japanese camellia
• Camellia japonica 'Benten-shiratama' – Japanese camellia
• Camellia japonica × C. cuspidata
• Camellia japonica 'Curly Lady' – Japanese camellia
• Camellia japonica 'Debutante Benten' – Japanese camellia
• Camellia japonica 'Dr. J.C. Raulston' – camellia
• Camellia japonica 'Fire Falls' – camellia
• Camellia japonica (fishtail, white w/ red stripes) – Japanese camellia
• Camellia japonica 'Geoff Hamilton' – Japanese camellia
• Camellia japonica 'Hokkaido Red' – Japanese camellia
• Camellia japonica 'Jacks' – Japanese camellia
• Camellia japonica 'Kifukurin-benikarako' – Japanese camellia
• Camellia japonica (Korean germplasm) – Japanese camellia
• Camellia japonica 'Kujaku Tsubaki' – Japanese camellia
• Camellia japonica 'Kuro Delight' – Japanese camellia
• Camellia japonica (mottled variegation ex. Wind River) – Japanese camellia
• Camellia japonica 'Nuccio's Cameo' – Japanese camellia
• Camellia japonica 'Orandako' – Japanese camellia
• Camellia japonica 'Professor Charles S. Sargent' – Japanese camellia
• Camellia japonica 'Quercifolia' – fish-tail Japanese camellia
• Camellia japonica 'Reg Ragland' – Japanese camellia
• Camellia japonica 'Shirobotan' – Japanese camellia
• Camellia japonica 'Tama Electra' – Japanese camellia
• Camellia japonica 'Tama Peacock' – Japanese camellia
• Camellia japonica (variegated, pink double) – Japanese camellia
• Camellia japonica 'Violet Femme' – Japanese camellia
• Camellia japonica 'White By The Gate' – Japanese camellia
• Camellia japonica 'White Mermaid' – fish-tail Japanese camellia
• Camellia japonica 'White Perfection' – Japanese camellia
• Camellia 'Kikuzuki' – camellia
• Camellia kissii (pink)
• Camellia 'Kokin Gold' – camellia
• Camellia 'Koto-no-kaori' – camellia
• Camellia 'Londontowne Blush' – camellia
• Camellia oleifera – tea-oil camellia
• Camellia (oleifera hybrid, weeping)
• Camellia 'Robiraki' – Summer Beauty camellia
• Camellia (rosaeflora hybrid)
• Camellia rusticana 'Ai-no-izumi' – snow camellia
• Camellia rusticana 'Koshi-no-fubuki' – snow camellia
• Camellia sasanqua 'Autumn Rocket' – sasanqua camellia
• Camellia sasanqua 'Autumn Sentinel' – sasanqua camellia
• Camellia sasanqua 'Autumn Sunrise' – sasanqua camellia
• Camellia sasanqua 'Fuji-no-yuki' – sasanqua camellia
• Camellia sasanqua (gold leaf form)
• Camellia sasanqua 'Green 01-006' – October Magic Carpet sasanqua camellia
• Camellia sasanqua 'Green 02-003' – October Magic Ruby sasanqua camellia
• Camellia sasanqua 'Green 94-035' – October Magic Orchid camellia
• Camellia sasanqua 'Green 99-031' – Susy Dirr sasanqua camellia
• Camellia sasanqua 'Hanajiman' – sasanqua camellia
• Camellia sasanqua 'Marie Kirk' – sasanqua camellia
• Camellia sasanqua 'Ogonba' – sasanqua camellia
• Camellia sasanqua 'Reverend Ida' – sasanqua camellia
• Camellia sasanqua 'Rosy Pillar' – sasanqua camellia
• Camellia sasanqua 'Sarrel' – sasanqua camellia
• Camellia sasanqua 'Seventh Desire' – sasanqua camellia
• Camellia sasanqua 'TDN 1116' – Bella Rouge / Hot Flash sasanqua camellia
• Camellia sasanqua 'William Lanier Hunt' – sasanqua camellia
• Camellia sasanqua 'Yuletide' – sasanqua camellia
• Camellia sasanqua ('Yuletide' variegated sport) – sasanqua camellia
• Camellia sinensis – tea camellia
• Camellia sinensis 'Christine's Choice' – tea camellia
• Camellia sinensis 'Fuiri' – tea camellia
• Camellia sinensis 'O Kuntze' – variegated tea camellia
• Camellia sinensis 'Silver Dust' – tea camellia
• Camellia sinensis 'Unryu' – tea camellia
• Camellia 'Snow Blizzard' – camellia
• Camellia 'Snow Flurry' – Ackerman camellia
• Camellia 'Sweet Jane' – camellia
• Camellia 'Tiny Princess' – camellia
• Camellia aff. transarisanensis – snowbells camellia
• Camellia transnokoensis – Mount Noko camellia
• Camellia tsaii 'Erina' – cascading camellia
• Camellia ×vernalis 'Christmas Candy' – camellia
• Camellia ×vernalis 'Egao Corkscrew' – vernal camellia
• Camellia ×vernalis 'Egao Spring Snowfall' – vernal camellia
• Camellia ×vernalis 'Ginryu' – vernal camellia
• Camellia ×vernalis 'Hiryû' – vernal camellia
• Camellia ×vernalis 'Shibori Egao' – camellia
• Camellia ×williamsii 'Golden Spangles' – camellia
• Camellia ×williamsii 'Mary Christian' – Williamsii camellia
• Camellia 'Winter's Charm' – Ackerman camellia
• Camellia 'Winter's Dream' – Ackerman camellia
• Camellia 'Winter's Star' – Ackerman camellia
• Camellia 'Winter's Star Light' – camellia
• Camellia 'Wirlinga Bride' – camellia
• Camellia 'Yoimachi' – camellia
• Camellia yuhsiensis
• Camellia 'Yume' – camellia
• Campanula alliariifolia – ivory bells
• Campanula bononiensis – European bellflower
• Campanula cervicaria
• Campanula cretica
• Campanula glomerata – clustered bellflower
• Campanula grossekii
• Campanula petrophila
• Campanula primulifolia – Spanish bellflower
• Campanula takesimana – Korean bellflower
• Campanula takesimana 'Elizabeth' – Korean bellflower
• Campsis radicans 'Apricot' – trumpet vine
• Campsis radicans (Bahama yellow) – trumpet vine
• Campsis radicans 'Flava' – trumpet vine
• Campsis radicans 'Stromboli' – Atomic Red red trumpet vine
• Canna – canna lily
• Canna 'African Sunset' – canna lily
• Canna 'Australia' – canna lily
• Canna – CannaSol Happy Cleo canna lily
• Canna 'Cleopatra' – canna lily
• Canna compacta × C. patens – canna lily
• Canna 'Constitution' – canna lily
• Canna 'Flaming Kabobs' – canna lily
• Canna gigantea – canna lily
• Canna glauca (ex. peach)
• Canna indica – canna lily
• Canna 'Mary's Gold' – canna lily
• Canna musifolia – banana canna
• Canna occidentalis – canna lily
• Canna 'Orange Punch' – canna lily
• Canna 'Pacific Beauty' – canna lily
• Canna 'Panache' – canna lily
• Canna patens – canna lily
• Canna (peach) – canna lily
• Canna 'Red Wine' – canna lily
• Canna 'Striata' – canna lily
• Canna 'Thai One On' – canna lily
• Canna 'Valentine' – canna lily
• Canna (variegated) – canna lily
• Canna 'Warszewiczii' – canna lily
• Canna (yellow seedling)
• Caragana microphylla 'Mongolian Silver Spires'
• Cardamine bulbosa 'Snow Showers' – toothwort
• Cardamine diphylla – toothwort
• Cardamine diphylla 'Bama Jama' – toothwort
• Cardamine douglassii 'Southern Lady'
• Cardamine quinquefolia
• Cardiocrinum cathayanum – Himalayan lily
• Carex amphibola – eastern narrowleaf sedge
• Carex annectens – sedge
• Carex berggrenii – Berggren's sedge
• Carex cherokeensis – Cherokee sedge
• Carex comans – Amazon Mist New Zealand hair sedge
• Carex comans 'Olive Oil'
• Carex divulsa – grassland sedge
• Carex 'ET CRX 904' – Moon Falls sedge
• Carex 'ET CRX01' – Feather Falls variegated sedge
• Carex 'ET CRX02' – Ribbon Falls sedge
• Carex flacca – blue green sedge
• Carex flacca 'Blue Zinger' – blue green sedge
• Carex flacca 'Mini' – blue green sedge
• Carex flaccosperma – blue wood sedge
• Carex frankii – Frank's sedge
• Carex grayi – Gray's sedge
• Carex laxiculmis 'Hobb' – Bunny Blue creeping sedge
• Carex lupulina – hop sedge
• Carex morrowii 'Silver Sceptre' – variegated Japanese sedge
• Carex muskingumensis 'Ice Fountains' – palm sedge
• Carex oshimensis 'Carfit01' – Evercolor Everest white variegated Japanese sedge
• Carex oshimensis 'Evergold' – Japanese sedge
• Carex oshimensis 'Everillo' – Evercolor Japanese sedge
• Carex oshimensis 'Everlime' – EverColor Japanese sedge
• Carex oshimensis 'Eversheen' – EverColor variegated Japanese sedge
• Carex pendula – pendulous sedge
• Carex phyllocephala 'Sparkler' – carnation grass
• Carex plantaginea – wide-leafed sedge
• Carex punicea 'Belinda's Find'
• Carex radiata 'Halifax' – eastern star sedge
• Carex scaposa – cherry blossom sedge
• Carex socialis 'Coahoma' – sedge
• Carex squarrosa – squarrose sedge
• Carex stricta – tussock sedge
• Carex testacea 'Prairie Fire' – New Zealand sedge
• Carlina acaulis subsp. caulescens – weather thistle
• Carpinus – hornbeam
• Carpinus betulus 'Columnaris' – dwarf columnar European hornbeam
• Carpinus betulus 'Dervaesii' – weeping Vienna hornbeam
• Carpinus betulus 'Pendula' – weeping European hornbeam
• Carpinus caroliniana 'Draves Iron Cascade' – American hornbeam
• Carpinus caroliniana 'Stowe Cascade' – American hornbeam
• Carpinus caroliniana 'Uxbridge' – Rising Fire American hornbeam
• Carpinus cordata – heart-leaf hornbeam
• Carpinus coreana – Korean ironwood
• Carpinus henryana var. simplicidentata – hornbeam
• Carpinus hupeana
• Carpinus japonica – Japanese hornbeam
• Carpinus japonica 'Silver Lace' – Japanese hornbeam
• Carpinus kawakamii – hornbeam
• Carpinus laxiflora – loose-flower hornbeam
• Carpinus omeiensis – Mt. Omei hornbeam
• Carpinus orientalis – oriental hornbeam
• Carpinus tschonoskii – Yeddo hornbeam
• Carpinus turczaninowii – Tatarian hornbeam
• Carpinus viminea – hornbeam
• Carrierea calycina – goat horn tree
• Cartrema americana 'Woodlanders Amanda' – variegated wild olive
• Caryopteris ×clandonensis 'Blauer Splatz' – Sapphire Surf bluebeard
• Caryopteris ×clandonensis 'Emerald Crest'
• Caryopteris ×clandonensis 'Gold Crest' – bluebeard
• Caryopteris ×clandonensis 'White Surprise' – bluebeard
• Caryopteris divaricata 'Blue Butterflies' – bluebeard
• Caryopteris incana – Pavilion Pink bluebeard
• Caryopteris incana (prostrate)
• Castanea henryi – Chinese chinquapin
• Castanopsis cuspidata – Japanese chinquapin
• Castanopsis delavayi – Delavay's chinquapin
• Castanopsis sclerophylla – Chinese tan-bark oak
• Catalpa bignonioides 'Aurea' – gold-leaf catalpa
• Catalpa (Ecos strain) – catalpa
• Catalpa fargesii – Chinese catalpa
• Catalpa speciosa 'Hiawatha 2' – Heartland northern catalpa
• Ceanothus ×delileanus 'Topaze' – California lilac
• Ceanothus ×delilianus 'Henri Desfossé' – hybrid ceanothus
• Cedrus atlantica 'Argentea Fastigiata' – columnar blue Atlas cedar
• Cedrus deodara 'Compacta' – compact Deodar cedar
• Cedrus deodara 'Electra' – Deodar cedar
• Cedrus deodara 'Feelin' Blue' – Deodar cedar
• Cedrus deodara 'Gemstone' – Deodar cedar
• Cedrus deodara 'Glacier Blue' – dwarf Deodar cedar
• Cedrus deodara 'Monkinn' – Feelin' Sunny deodor cedar
• Cedrus deodara 'Pendula' – weeping Deodar cedar
• Cedrus deodara 'Prostrate Beauty' – prostrate Deodar cedar
• Cedrus deodara 'Raywood's Contorted' – Deodar cedar
• Cedrus deodara 'Silver' – Deodar cedar
• Cedrus libani subsp. brevifolia – Cyprian cedar
• Cedrus libani 'Katere'
• Ceiba speciosa – silk-floss tree
• Celtis edulis – hackberry
• Celtis julianae – Julian hackberry
• Celtis koraiensis – Korean hackberry
• Celtis sinensis – Japanese hackberry
• Celtis sinensis 'Green Cascade' – weeping Chinese hackberry
• Celtis tenuifolia – dwarf hackberry
• Centaurea ragusina 'Balcentsirl' – Silver Swirl dusty miller
• Cephalanthus occidentalis 'Bailoptics' – First Editions Fiber Optics buttonbush
• Cephalanthus occidentalis 'Just Deserts' – buttonbush
• Cephalotaxus – plum yew
• Cephalotaxus fortunei – Chinese plum yew
• Cephalotaxus fortunei var. alpina – alpine Chinese plum yew
• Cephalotaxus harringtonia – Japanese plum yew
• Cephalotaxus harringtonia 'Fastigiata' – upright Japanese plum yew
• Cephalotaxus harringtonia 'Fritz Huber' – dwarf Japanese plum yew
• Cephalotaxus harringtonia 'Gnome' – dwarf Harrington plum yew
• Cephalotaxus harringtonia 'H.W. Sargent' – dwarf Japanese plum yew
• Cephalotaxus harringtonia var. koreana – Korean plum yew
• Cephalotaxus harringtonia var. koreana 'Korean Gold' – Korean plum yew
• Cephalotaxus harringtonia 'Mary Fleming' – dwarf Japanese plum yew
• Cephalotaxus harringtonia 'Pedunculata' – Harrington plum yew
• Cephalotaxus harringtonia 'Plania' (Yewtopia) – Japanese plum yew
• Cephalotaxus harringtonia 'Watnong' – Japanese plum yew
• Cephalotaxus lanceolata – Yunnan plum yew
• Cephalotaxus sinensis – Chinese plum yew
• Cephalotaxus sinensis (Peckerwood dense form) – Chinese plum yew
• Ceratostigma griffithii – Griffith's blue leadwort
• Ceratostigma griffithii 'Snow Flurries' – white Griffith's leadwort
• Ceratostigma willmottianum – Chinese plumbago
• Cercidiphyllum japonicum – katsura tree
• Cercidiphyllum japonicum 'Morioka Weeping' – katsura tree
• Cercidiphyllum japonicum 'Peach' – katsura
• Cercidiphyllum japonicum (variegated)
• Cercis – redbud
• Cercis 'Big John' – hybrid redbud
• Cercis canadensis 'Ace of Hearts' – eastern redbud
• Cercis canadensis f. alba – eastern redbud
• Cercis canadensis 'Alley Cat' – eastern redbud
• Cercis canadensis 'Appalachian Red' – eastern redbud
• Cercis canadensis 'Cascading Hearts' – eastern redbud
• Cercis canadensis 'Crosswicks Red' – eastern redbud
• Cercis canadensis 'Flame' – eastern redbud
• Cercis canadensis 'Gold Crown' – eastern redbud
• Cercis canadensis 'Greswan' – Burgundy Hearts eastern redbud
• Cercis canadensis 'Hearts of Gold' – eastern redbud
• Cercis canadensis 'JN15' – Rise 'N Shine eastern redbud
• Cercis canadensis 'JN16' – Black Pearl eastern redbud
• Cercis canadensis 'JN2' – The Rising Sun eastern redbud
• Cercis canadensis 'JN7' – Summers Tower eastern redbud
• Cercis canadensis (large leaf form) – eastern redbud
• Cercis canadensis var. mexicana 'Bonita' – Mexican redbud
• Cercis canadensis var. mexicana 'Sanderson' – Mexican redbud
• Cercis canadensis 'NC2014-10' – Gilded Hearts eastern redbud
• Cercis canadensis 'NC2015-12' – Golden Falls eastern redbud
• Cercis canadensis 'NC2016-2' – Flame Thrower eastern redbud
• Cercis canadensis 'NC2017-6' – Garden Gems Amethyst eastern redbud
• Cercis canadensis 'NC2017-9' – Garden Gems Emerald Falls eastern redbud
• Cercis canadensis 'Pink Heartbreaker' – eastern redbud
• Cercis canadensis 'Pink Pom Poms' – eastern redbud
• Cercis canadensis 'Royal White' – eastern redbud
• Cercis canadensis 'Ruby Falls' – eastern redbud
• Cercis canadensis 'Seirb' – Zig Zag eastern redbud
• Cercis canadensis 'Silver Cloud' – eastern redbud
• Cercis canadensis 'Sjo' – Cotton Candy eastern redbud
• Cercis canadensis var. texensis 'Oklahoma' – dark flowered Texas redbud
• Cercis canadensis var. texensis ('Oklahoma' variegated) – Texas redbud
• Cercis canadensis var. texensis 'Traveller' – weeping Texas redbud
• Cercis canadensis 'Tom Thumb' – eastern redbud
• Cercis canadensis 'Vanilla Twist' – eastern redbud
• Cercis canadensis 'Whitewater' – eastern redbud
• Cercis chinensis 'Celestial Plum' – smooth redbud
• Cercis chinensis 'Don Egolf' – Chinese redbud
• Cercis chinensis (dwarf form) – dwarf Chinese redbud
• Cercis chinensis 'Genpei' – Chinese redbud
• Cercis chinensis 'Kay's Early Hope' – Chinese redbud
• Cercis chinensis 'Reznicek' – dwarf Chinese redbud
• Cercis chinensis 'Shibamichi Red' – Chinese redbud
• Cercis chinensis 'Shirobana' – white Chinese redbud
• Cercis chinensis 'Shishiba' – contorted Chinese redbud
• Cercis chingii – Ching's redbud
• Cercis chuniana – Chun's redbud
• Cercis griffithii – Afghan redbud
• Cercis (hybrid)
• Cercis (hybrid no. 1)
• Cercis (hybrid no. 3) – redbud
• Cercis 'NC2021-2'
• Cercis racemosa – chain-flowered redbud
• Cercis racemosa (cold hardy form) – chain-flowered redbud
• Cercis 'Wavecrest' – redbud
• Cestrum corymbosum 'WNCESCORYEL' – Juiced Orange jessamine
• Cestrum 'Lemon Peel'
• Cestrum 'Orange Peel' – jessamine
• Cestrum parqui – willow-leaved jessamine
• Chaenomeles 'Dragon's Blood' – Japanese flowering quince
• Chaenomeles japonica 'Chojuraku' – Japanese flowering quince
• Chaenomeles 'NCCS4' – Double Take Peach Japanese flowering quince
• Chaenomeles 'Orange Storm' – Double Take hybrid flowering quince
• Chaenomeles 'Pink Storm' – Double Take Pink flowering quince
• Chaenomeles 'Scarff's Red' – flowering quince
• Chaenomeles 'Scarlet Storm' (Double Take) – flowering quince
• Chaenomeles speciosa – flowering quince
• Chaenomeles speciosa 'Contorta' – contorted flowering quince
• Chaenomeles speciosa 'Mt. Fuji' – flowering quince
• Chaenomeles speciosa 'Orange Delight' – flowering quince
• Chaenomeles ×superba 'Jet Trail' – flowering quince
• Chaenomeles ×superba 'Mandarin' – hybrid flowering quince
• Chaenomeles ×superba 'Texas Scarlet' – hybrid flowering quince
• Chaetogastra gracilis
• Chamaecyparis lawsoniana 'Filip's Golden Tears' – Lawson's cypress
• Chamaecyparis lawsoniana 'Imbricata Pendula' – Lawson's cypress
• Chamaecyparis obtusa 'Aurea' – hinoki falsecypress
• Chamaecyparis obtusa 'Confucius' – hinoki falsecypress
• Chamaecyparis obtusa 'Flabelliformis' – hinoki falsecypress
• Chamaecyparis obtusa 'Gracilis' – hinoki falsecypress
• Chamaecyparis obtusa 'Green Cushion' – hinoki falsecypress
• Chamaecyparis obtusa 'Kosteri' – hinoki falsecypress
• Chamaecyparis obtusa 'Leprechaun' – hinoki falsecypress
• Chamaecyparis obtusa 'Lougheed' – hinoki falsecypress
• Chamaecyparis obtusa 'Lynn's Golden' – hinoki falsecypress
• Chamaecyparis obtusa 'Nana Gracilis' – hinoki falsecypress
• Chamaecyparis obtusa 'Oregon Crested' – hinoki falsecypress
• Chamaecyparis obtusa 'Special Variegated' – hinoki falsecypress
• Chamaecyparis obtusa 'Vokel's Upright' – hinoki falsecypress
• Chamaecyparis pisifera 'Cream Ball' – sawara cypress
• Chamaecyparis pisifera 'Filifera' – sawara cypress
• Chamaecyparis pisifera 'Filip's Happy Day' – sawara cypress
• Chamaecyparis pisifera 'Gekko' – sawara cypress
• Chamaecyparis pisifera 'Golddust' – sawara cypress
• Chamaecyparis pisifera 'Juniperoides' – sawara cypress
• Chamaecyparis pisifera 'Tsukumo' – sawara cypress
• Chamaecyparis thyoides 'Ericoides' – Atlantic white-cedar
• Chamaecyparis thyoides var. henryae 'Red Velvet' – Panhandle white-cedar
• Chamaecyparis thyoides 'Lovett's Goldzwerg' – Atlantic white-cedar
• Chamaecyparis thyoides 'Top Point' – Atlantic white-cedar
• Chamaecyparis thyoides 'Yankee Blue' – Atlantic white-cedar
• Chasmanthium latifolium – river oats
• Chasmatophyllum musculinum
• Chelone glabra 'Black Ace' – white turtlehead
• Chelonopsis moschata – Japanese turtlehead
• Chelonopsis 'Stonewall Pink' – Japanese turtlehead
• Chilopsis linearis 'Angel White' – desert willow
• Chilopsis linearis 'Bubba' – desert willow
• Chimonanthus nitens – evergreen chimonanthus
• Chimonanthus praecox – wintersweet
• Chimonanthus praecox 'Luteus' – wintersweet
• Chimonanthus zhejiangensis – evergreen wintersweet
• Chionanthus pygmaeus – pygmy fringetree
• Chionanthus retusus – Chinese fringe tree
• Chionanthus retusus 'China Doll' – Chinese fringe tree
• Chionanthus retusus 'China Snow' – Chinese fringe tree
• Chionanthus retusus 'Glenda'
• Chionanthus retusus 'Ivory Tower' – columnar Chinese fringe tree
• Chionanthus retusus 'Tokyo Tower' – Chinese fringe tree
• Chionanthus retusus 'Yadkin Creeper' – weeping Chinese fringetree
• Chionanthus virginicus 'Little Leslie' – American fringe tree
• Chionanthus virginicus 'White Knight' – American fringe tree
• Chionodoxa forbesii
• Chionodoxa forbesii 'Pink Giant'
• Chionodoxa luciliae
• Chionodoxa luciliae 'Alba' – glory of the snow alba
• Chionodoxa luciliae 'Violet Beauty'
• Chionodoxa sardensis – glory of the snow
• ×Chitalpa 'NCXC1' – El Niño desert orchid
• ×Chitalpa tashkentensis 'Morning Cloud' – chitalpa
• ×Chitalpa tashkentensis 'Strawberry Moon'
• Chlidanthus fragrans
• Chloranthus erectus – upright chloranthus
• Chloranthus japonicus
• Chloranthus serratus
• Chloranthus sessilifolius var. austrosinensis
• Chloranthus sessilifolius 'Get Shorty' – sessile-leaf chloranthus
• Chlorophytum – spider plant
• Chlorophytum cf. bowkeri – African snake lily
• Chlorophytum capense – bracketplant
• Chlorophytum nepalense
• Chlorophytum saundersiae – weeping spider plant
• Chlorophytum sparsiflorum
• Choerospondias axillaris – Nepali hog plum
• Choisya ×dewitteana 'Limo' – Goldfingers Mexican orange
• Chrysactinia mexicana – damianita
• Chrysanthemum 'Brandywine Sunset' – hardy chrysanthemum
• Chrysanthemum 'Cathy's Rust' – garden chrysanthemum
• Chrysanthemum 'Country Girl' – garden chrysanthemum
• Chrysanthemum 'Crystal Falls' – garden chrysanthemum
• Chrysanthemum (double cream) – garden chrysanthemum
• Chrysanthemum (Elizabeth Lawrence pink) – garden chrysanthemum
• Chrysanthemum 'Firefall' – garden chrysanthemum
• Chrysanthemum 'Gethsemane Moonlight' – garden chrysanthemum
• Chrysanthemum 'Golden Lida Thomas' – garden chrysanthemum
• Chrysanthemum 'Icicles' – garden chrysanthemum
• Chrysanthemum indicum – Apple Valley garden chrysanthemum
• Chrysanthemum 'Kurume' – garden chrysanthemum
• Chrysanthemum 'Lavender Lady' – garden chrysanthemum
• Chrysanthemum 'Maryl' – garden chrysanthemum
• Chrysanthemum 'Miss Gloria's Thanksgiving Day' – garden chrysanthemum
• Chrysanthemum 'Mrs. Robinson' – garden chrysanthemum
• Chrysanthemum 'Norton Vic' – garden chrysanthemum
• Chrysanthemum (pink cascading) – garden chrysanthemum
• Chrysanthemum (rusty orange, large flowered cascading) – garden chrysanthemum
• Chrysanthemum (rusty orange, small flowered cascading) – garden chrysanthemum
• Chrysanthemum 'Sheffield Pink' – garden chrysanthemum
• Chrysanthemum (single red) – garden chrysanthemum
• Chrysanthemum 'Venus' – garden chrysanthemum
• Chrysanthemum zawadzkii subsp. zawadzkii 'Apricot' – Weyrich's chrysanthemum
• Chrysogonum virginianum 'Allen Bush' – green-and-gold
• Chrysogonum virginianum 'Eco Lacquered Spider' – green-and-gold
• Chrysogonum virginianum 'Pierre' – green-and-gold
• Chrysojasminum parkeri – Parker's jasmine
• Cinnamomum chekiangense – camphor tree
• Cinnamomum japonicum – Japanese camphor
• Cinnamomum jensenianum
• Cinnamomum mairei
• Cinnamomum (aff. porrectum)
• Cinnamomum wilsonii – Wilson's camphor-tree
• Cissus trifoliata – marine ivy
• Cistus 'Mickie' – variegated rockrose
• Cistus monspeliensis – Montpellier rockrose
• Cistus symphytifolius
• Citrus cavaleriei – Ichang lemon
• Citrus japonica – round kumquat
• Citrus (trifoliata × auranticum) – trifoliate orange
• Citrus trifoliata 'Flying Dragon' – trifoliate orange
• Citrus trifoliata (gold contorted) – trifoliate orange
• Citrus (trifoliata × paradisi 'Dunstan') – trifoliate orange
• Citrus trifoliata 'Snow Dragon' – trifoliate orange
• Cladrastis kentukea 'Perkins Pink' – pink flowered American yellowwood
• Cladrastis platycarpa – Japanese yellowwood
• Cladrastis sinensis 'China Rose' – pink Chinese yellowwood
• Clara ophiopogonoides
• Clematis
• Clematis armandii – evergreen clematis
• Clematis cirrhosa – winter clematis
• Clematis 'Cleminov 51' – Sapphire Indigo clematis
• Clematis 'Duchess of Edinburgh' – white flowering clematis
• Clematis 'Fireworks' – clematis
• Clematis fremontii – Fremont's leather flower
• Clematis fruticosa 'Mongolian Gold' – clematis
• Clematis integrifolia 'Blue Boy' – clematis
• Clematis 'Kilian Donahue' – reblooming clematis
• Clematis ladakhiana
• Clematis 'Omoshiro' – clematis
• Clematis 'Rain Dance' – bush clematis
• Clematis recta 'Lime Close' – Serious Black clematis
• Clematis reticulata × C. texensis – clematis
• Clematis 'Rooguchi' – clematis
• Clematis songorica – clematis
• Clematis 'Stand by Me' – clematis
• Clematis 'Stand by Me Pink' – bush clematis
• Clematis 'Sweet Summer Love' – clematis
• Clematis texensis (re-blooming form) – clematis
• Clematis tibetana – Tibetan clematis
• Clematis tibetana var. vernayi
• Clematis 'Violet Stardust' – bush clematis
• Clematis 'Vitiwester' – Burning Love clematis
• Clerodendrum wallichii – bridal-veil glorybower
• Clethra acuminata – mountain pepperbush
• Clethra alnifolia 'Hokie Pink' – summersweet
• Clethra alnifolia 'Ruby Spice' – summersweet
• Clethra alnifolia 'Sherry Sue' – summersweet
• Clethra alnifolia 'Sixteen Candles' – dwarf summersweet
• Clethra barbinervis – Japanese clethra
• Clethra barbinervis 'Takeda Nishiki' – First Snow Japanese clethra
• Clethra fargesii – bush pepper
• Clethra pringlei – Mexican clethra
• Cleyera japonica – Japanese cleyera
• Cleyera japonica 'Variegata' – Romeo variegated Japanese cleyera
• Cleyera pachyphylla (Jiangxi)
• Clinopodium georgianum 'Conecuh Craziness'
• Clinopodium georgianum 'WAH/SS' – Sweet Savannah calamint
• Clinopodium grandiflorum 'Variegata' – variegated calamint
• Clinopodium nepeta – lesser calamint
• Clinopodium nepeta subsp. glandulosum 'White Cloud' – lesser calamint
• Clinopodium nepeta 'Montrose White' – lesser calamint
• Clinopodium nepeta subsp. nepeta – lesser calamint
• Clinopodium vulgare – wild basil
• Clitoria
• Codonopsis clematidea – bonnet bellflower
• Codonopsis lanceolata – bonnet bellflower
• Colchicum soboliferum
• Colletia hystrix – bristly colletia
• Collinsonia japonica
• Collinsonia japonica (ex. 'Snow White')
• Colocasia esculenta 'Aloha' – elephant ear
• Colocasia esculenta ('Fontanesii' green stem form) – elephant ear
• Colocasia esculenta 'Maui Gold' – elephant ear
• Colocasia gigantea (Thailand giant form) – elephant ear
• Coniogramme emeiensis 'Golden Zebra' – variegated bamboo fern
• Coniogramme gracilis – bamboo fern
• Coniogramme intermedia 'Yoroi Musha' – bamboo fern
• Coniogramme japonica – Japanese bamboo fern
• Coniogramme jinggangshanensis 'Shishi' – bamboo fern
• Conradina canescens – false rosemary
• Convallaria majalis – lily-of-the-valley
• Convallaria majalis 'Fernwood's Golden Slippers' – lily-of-the-valley
• Convallaria majalis 'Flore Pleno' – lily-of-the-valley
• Convallaria majalis 'Hardwick Hall' – lily-of-the-valley
• Convallaria majalis 'Striata' – lily-of-the-valley
• Cordyline australis – cabbage tree
• Cordyline australis 'Torbay Dazzler'
• Coreopsis auriculata 'Nana' – dwarf mouse ear coreopsis
• Coreopsis 'Candlelight' – threadleaf coreopsis
• Coreopsis helianthoides – Beadle’s tickseed
• Coreopsis major – greater tickseed
• Coreopsis tripteris 'Lightning Flash'
• Cornus aff. alba
• Cornus alba 'ByBoughen' – First Editions Neon Burst Tartarian dogwood
• Cornus alba 'Minbat' – First Editions Baton Rouge Tatarian dogwood
• Cornus alba 'UMN970507' – Garden Glow Tatarian dogwood
• Cornus amomum 'Cayenne' – First Editions Cayenne silky dogwood
• Cornus amomum subsp. obliqua – silky dogwood
• Cornus capitata – Himalayan evergreen dogwood
• Cornus capitata 'Legacy'
• Cornus controversa – giant dogwood
• Cornus controversa 'June Snow' – giant dogwood
• Cornus darvasica
• Cornus elliptica 'First Choice' – Chinese evergreen dogwood
• Cornus elliptica 'NCCE1' – Lucky Leprechaun Chinese evergreen dogwood
• Cornus elliptica 'Summer Splash' – Chinese evergreen dogwood
• Cornus florida 'Appalachian Spring' – flowering dogwood
• Cornus florida 'JN13' – Ragin' Red red flowering dogwood
• Cornus florida 'Purple Glory' – flowering dogwood
• Cornus florida 'Pygmaea' – dwarf flowering dogwood
• Cornus florida subsp. urbiniana – Mexican flowering dogwood
• Cornus 'Gallant Gold' – hybrid dogwood
• Cornus 'Gloria Birkett' – dogwood
• Cornus hongkongensis – evergreen dogwood
• Cornus aff. hongkongensis – Hong Kong dogwood
• Cornus hongkongensis subsp. melanotricha – evergreen dogwood
• Cornus hongkongensis subsp. tonkinensis – Hong Kong dogwood
• Cornus aff. hongkongensis (white fruit) – evergreen dogwood
• Cornus iberica – dogwood
• Cornus kousa 'Blue Shadow' – kousa dogwood
• Cornus kousa subsp. chinensis 'Aiden's Mint Frost' – Chinese Kousa dogwood
• Cornus kousa subsp. chinensis 'Girard's Nana' – Chinese Kousa dogwood
• Cornus kousa subsp. chinensis 'Propzam' – Prophet Chinese Kousa dogwood
• Cornus kousa subsp. chinensis 'Samzam' – Samaritan Chinese Kousa dogwood
• Cornus kousa subsp. chinensis 'Splendiferous' – Chinese Kousa dogwood
• Cornus kousa subsp. chinensis 'Ticknor's Choice' – Chinese Kousa dogwood
• Cornus kousa 'Elizabeth Lustgarten' – weeping kousa dogwood
• Cornus kousa 'Greensleeves' – kousa dogwood
• Cornus kousa 'Kristin Lipka's Variegated Weeper' – kousa dogwood
• Cornus kousa 'Little Poncho'
• Cornus kousa 'Lustgarten Weeping' – kousa dogwood
• Cornus kousa 'Polizam' – Powdered Lipstick kousa dogwood
• Cornus kousa 'Rutpink' – Scarlet Fire pink kousa dogwood
• Cornus kousa 'Snow Tower' – kousa dogwood
• Cornus kousa 'Summer Gold' – variegated kousa dogwood
• Cornus kousa 'Trinity Star' – variegated kousa dogwood
• Cornus kousa 'White Ball' – kousa dogwood
• Cornus macrophylla – bigleaf dogwood
• Cornus mas 'Aureoelegantissima' – variegated Cornelian cherry
• Cornus mas 'Elegant' – Cornelian cherry
• Cornus mas 'JFS PN4Legacy' – Saffron Sentinel Cornelian cherry
• Cornus mas 'Pioneer' – Cornelian cherry
• Cornus mas 'Ukraine Yellow' – Cornelian cherry
• Cornus mas 'Variegata' – variegated Cornelian cherry
• Cornus mas 'Vidubetskii' – Red Star Cornelian cherry
• Cornus mas (yellow-fruited) – cornelian cherry
• Cornus 'NCCH3' – Cloudburst dogwood
• Cornus officinalis – Chinese cornelian dogwood
• Cornus officinalis 'Kintoki' – Chinese cornelian dogwood
• Cornus officinalis 'Morton' – Chinese cornelian dogwood
• Cornus officinalis 'Spring Glow' – Chinese cornelian dogwood
• Cornus officinalis 'Sunsphere' – Chinese cornelian dogwood
• Cornus pumila – dwarf redtip dogwood
• Cornus quinquenervis – alder wood
• Cornus quinquenervis (compact form) – alder wood
• Cornus 'Rutcan' – Constellation Rutgers hybrid dogwood
• Cornus sanguinea subsp. australis – black sea dogwood
• Cornus sanguinea 'Midwinter Fire' – bloodtwig dogwood
• Cornus sanguinea 'Winter Beauty' – bloodtwig dogwood
• Cornus wilsoniana – Wilson's dogwood
• Cornus wilsoniana 'White Jade' – Wilson's dogwood
• Cortaderia araucana – pampas grass
• Cortaderia selloana 'Aureolineata' – gold-stripe Pampas grass
• Cortaderia selloana 'Blue Bayou' – pampas grass
• Cortaderia selloana 'Sunningdale Silver' – Pampas grass
• Corydalis solida 'Beth Evans' – fumewort
• Corydalis solida 'Merlin'
• Corydalis solida 'Purple Bird' – fumewort
• Corydalis solida subsp. solida 'White Knight' – fumewort
• Corylopsis – winter hazel
• Corylopsis glabrescens var. gotoana – winter hazel
• Corylopsis multiflora – winter hazel
• Corylopsis sinensis – winter hazel
• Corylopsis sinensis var. calvescens f. veitchiana – winter hazel
• Corylopsis spicata – winter hazel
• Corylopsis spicata 'Golden Spring' – winter hazel
• Corylopsis willmottiae – winter hazel
• Corylopsis willmottiae 'Spring Purple' – winter hazel
• Corylus avellana 'Aurea' – golden hazelnut
• Corylus avellana 'Burgundy Lace' – hazelnut
• Corylus avellana 'Contorta' – Harry Lauder's walkingstick
• Corylus avellana 'Heterophylla' – cutleaf hazelnut
• Corylus avellana 'Red Majestic' – purple contorted hazelnut
• Corylus chinensis – Chinese hazelnut
• Corylus colurna – Turkish hazelnut
• Corylus fargesii – Farges' hazelnut
• Corylus maxima 'Purpurea' – purple-leaf giant filbert
• Coryphantha echinus
• Coryphantha robustispina subsp. scheeri
• Coryphantha sulcata – pineapple cactus
• Coryphantha vogtherriana
• Cosmos atrosanguineus – chocolate cosmos
• Cotinus coggygria 'Ancot' – Golden Spirit smokebush
• Cotinus coggygria 'Cotsidh5' – Velveteeny smoke bush
• Cotinus coggygria 'Daydream' – smokebush
• Cotinus coggygria 'MINCOJAU3' – Winecraft Gold smokebush
• Cotinus 'Grace' – purple smoketree
• Cotoneaster dammeri 'Streib's Findling' – bearberry cotoneaster
• Cotoneaster fangianus – Enshi cotoneaster
• Cotoneaster franchetii – orange cotoneaster
• Cotoneaster hodjingensis
• Cotoneaster lucidus
• Cotoneaster mingkwongensis – cotoneaster
• Cotoneaster morrisonensis – Taiwan cotoneaster
• Cotoneaster obscurus – dark red cotoneaster
• Cotoneaster ogisui – Ogisu's cotoneaster
• Cotoneaster pannosus – Chinese cotoneaster
• Cotoneaster ×suecicus 'OSUCOT1'
• Crambe maritima – sea kale
• Crataegus columbiana – black hawthorn
• Crataegus spathulata – little-hip hawthorn
• Crinum – crinum lily
• Crinum '9 Stripes' – crinum lily
• Crinum 'Alamo Village' – crinum lily
• Crinum americanum – St. Mark's, FL crinum lily
• Crinum amoenum – crinum lily
• Crinum asiaticum – crinum lily
• Crinum asiaticum var. japonicum – crinum lily
• Crinum ×baconi 'Maurine Spinks' – crinum lily
• Crinum 'Bambino' – crinum lily
• Crinum 'Bradley' – crinum lily
• Crinum bulbispermum – Orange river lily
• Crinum bulbispermum 'Aurora Glorialis' – Orange river lily
• Crinum bulbispermum 'Jumbo' – Orange river lily
• Crinum bulbispermum (Namibia form) – Orange river lily
• Crinum buphanoides – crinum lily
• Crinum 'Burgundy' – crinum lily
• Crinum 'Cameo Pink' – crinum lily
• Crinum 'Cecil Houdyshel' – crinum lily
• Crinum 'Claude Davis' – crinum lily
• Crinum ×digweedii – crinum lily
• Crinum ×digweedii 'Mahon' – crinum lily
• Crinum ×digweedii 'Red Flare' – crinum lily
• Crinum ×digweedii 'Stars And Stripes' – crinum-lily
• Crinum (dwarf) – crinum lily
• Crinum ×eboracii 'Twelve Apostles' – crinum-lily
• Crinum 'Elizabeth Traub' – crinum lily
• Crinum 'Ellen Bosanquet' – crinum lily
• Crinum erubescens (Westwego form) – crinum lily
• Crinum 'Faye Hornbuckle' – crinum lily
• Crinum 'Fiesta' – crinum lily
• Crinum firmifolium (Madagascar form) – crinum lily
• Crinum 'Glory' – crinum lily
• Crinum ×gowenii 'Massey's Pride' – crinum lily
• Crinum ×herbertii 'Carnival' – crinum lily
• Crinum ×herbertii 'Caroll Abbott' – crinum lily
• Crinum ×herbertii 'Cecil's Choice' – crinum lily
• Crinum ×herbertii 'Paul Bunyan' – crinum lily
• Crinum ×herbertii (pink keal) – crinum lily
• Crinum ×herbertii (red keel) – crinum lily
• Crinum ×herbertii 'Schreck' – crinum lily
• Crinum ×herbertii (Tuscaloosa form) – crinum lily
• Crinum hildebrandtii – crinum lily
• Crinum 'Improved Peach Blow' – crinum lily
• Crinum 'Infusion' – crinum lily
• Crinum 'J.C. Harvey' – crinum lily
• Crinum 'Jubilee' – crinum lily
• Crinum 'Kim Maureen' – crinum lily
• Crinum (Kridler clone) – crinum lily
• Crinum 'Li'l Stinker' – crinum lily
• Crinum 'Lorraine Clark' – crinum lily
• Crinum lugardiae (Namibia form) – crinum lily
• Crinum 'Maiden's Blush' – crinum lily
• Crinum mauritianum – crinum lily
• Crinum 'Mrs. Horace Kennedy' – crinum lily
• Crinum 'Mrs. James Hendry' – crinum lily
• Crinum 'Mystery' – crinum lily
• Crinum 'Peachblow' – crinum lily
• Crinum 'Peyton's Place' – crinum lily
• Crinum 'Pink Flamingo' – crinum lily
• Crinum 'Pink Perfume' – crinum lily
• Crinum 'Pink Trumpet' – crinum lily
• Crinum ×powellii – crinum lily
• Crinum ×powellii 'Kitty Clint' – crinum lily
• Crinum 'Rodger Croker Memorial' – crinum lily
• Crinum 'Sangria' – crinum lily
• Crinum 'Snow White' – crinum lily
• Crinum 'So Sweet' – crinum lily
• Crinum 'Summer Glow' – crinum lily
• Crinum 'Summer Nocturne' – crinum lily
• Crinum 'Super Ellen' – crinum lily
• Crinum 'Walter Flory' – crinum lily
• Crinum 'Wetbigi' – crinum lily
• Crinum 'Wetmini' – crinum lily
• Crinum 'White Queen' – crinum lily
• Crocosmia – Nova Gold Dragon montbretia
• Crocosmia ×crocosmiiflora 'George Davidson' – crocosmia
• Crocosmia ×crocosmiiflora 'Tobias'
• Crocosmia 'Emberglow' – crocosmia
• Crocosmia 'Jenny Bloom' – hybrid crocosmia
• Crocosmia 'Lucifer' – crocosmia
• Crocosmia – Twilight Fairy Crimson compact crocosmia
• Crocus – spring crocus
• Crocus angustifolius – cloth of gold crocus
• Crocus angustifolius 'Cloth of Gold'
• Crocus biflorus 'Miss Vain'
• Crocus chrysanthus 'Advance' – spring crocus
• Crocus chrysanthus 'Blue Pearl' – spring crocus
• Crocus chrysanthus 'Herald' – spring crocus
• Crocus chrysanthus 'Ladykiller' – spring crocus
• Crocus corsicus – Corsican crocus
• Crocus etruscus 'Zwanenburg' – Tuscan crocus
• Crocus flavus 'Golden Yellow'
• Crocus 'Florane'
• Crocus heuffelianus
• Crocus heuffelianus 'Uklin Strain'
• Crocus imperati 'De Jager' – crocus
• Crocus isauricus 'Spring Beauty'
• Crocus korolkowii 'Black-Eyed Beauty'
• Crocus korolkowii 'Orange Tiger'
• Crocus kosaninii
• Crocus laevigatus
• Crocus 'Major'
• Crocus malyi
• Crocus mathewii
• Crocus minimus
• Crocus niveus (late blooming form) – autumn-flowering crocus
• Crocus ochroleucus – autumn-flowering crocus
• Crocus pulchellus – autumn crocus
• Crocus puringii
• Crocus rujanensis
• Crocus sativus – saffron crocus
• Crocus sieberi 'Firefly' – Sieber's crocus
• Crocus speciosus
• Crocus speciosus 'Conqueror'
• Crocus speciosus 'Oxonian'
• Crocus thirkeanus
• Crocus tommasinianus – Tommasini's crocus
• Crocus tommasinianus 'Albus' – Tommasini's crocus
• Crocus tommasinianus 'Barr's Purple' – Tommasini's crocus
• Crocus tommasinianus 'Lilac Beauty' – Tommasini's crocus
• Crocus tommasinianus 'Pictus' – Tommasini's crocus
• Crocus tommasinianus 'Roseus' – Tommasini's crocus
• Crocus tommasinianus 'Ruby Giant' – Tommasini's crocus
• Crocus tommasinianus 'Whitewell Purple' – Tommasini's crocus
• Crocus vernus
• Crocus vernus 'King of the Striped'
• Crocus vernus 'Vanguard'
• Crocus 'Yalta'
• Croton alabamensis – Alabama croton
• Cryptomeria japonica 'Al's Blue' – Japanese cedar
• Cryptomeria japonica 'Benjamin Franklin' – Japanese cedar
• Cryptomeria japonica 'Birodo Sugi' – Japanese cedar
• Cryptomeria japonica 'Black Dragon' – Japanese cedar
• Cryptomeria japonica 'Butterball' – Japanese cedar
• Cryptomeria japonica 'Dinger' – Japanese cedar
• Cryptomeria japonica 'Ed Wood's' – Japanese cedar
• Cryptomeria japonica 'Elegans Nana' – Japanese cedar
• Cryptomeria japonica 'Giokumo' – Japanese cedar
• Cryptomeria japonica 'Golden Promise' – Japanese cedar
• Cryptomeria japonica 'Gyokuryu' – Japanese cedar
• Cryptomeria japonica 'Honey Moon' – Japanese cedar
• Cryptomeria japonica 'Kitakami' – Japanese cedar
• Cryptomeria japonica 'Kusari-sugi' – Japanese cedar
• Cryptomeria japonica 'Lemonade' – Japanese cedar
• Cryptomeria japonica 'Limeade' – Japanese cedar
• Cryptomeria japonica 'Little Diamond' – Japanese cedar
• Cryptomeria japonica 'Lobbii' – Japanese cedar
• Cryptomeria japonica 'Magic Dragon' – Japanese cedar
• Cryptomeria japonica 'Monstrosa' – Japanese cedar
• Cryptomeria japonica 'Nana' – Japanese cedar
• Cryptomeria japonica 'Nana Albospica' – Japanese cedar
• Cryptomeria japonica 'Pom Pom' – Japanese cedar
• Cryptomeria japonica 'Rein's Dense Jade' – Japanese cedar
• Cryptomeria japonica 'Sekkan' – Japanese cedar
• Cryptomeria japonica var. sinensis – Chinese cedar
• Cryptomeria japonica 'Tansu' – Japanese cedar
• Cryptomeria japonica 'Vilmoriniana Gold' – Japanese cedar
• Cryptomeria japonica 'Winter Green' – Japanese cedar
• Cryptomeria japonica 'Winter Mint' – Japanese cedar
• Cryptomeria japonica 'Yellow Twig' – Japanese cedar
• Cryptomeria japonica 'Yoshino' – Japanese cedar
• Ctenitis subglandulosa
• Cunila origanoides
• Cunninghamia lanceolata 'Chason's Gift' – China-fir
• Cunninghamia lanceolata 'Compacta' – China-fir
• Cunninghamia lanceolata var. konishii – China-fir
• Cunninghamia lanceolata var. konishii (ABG blue) – China-fir
• Cunninghamia lanceolata 'Samurai' – blue China-fir
• Cuphea
• Cuphea 'Cupver'
• Cuphea cyanea 'Ashevilla' – pink cigar plant
• Cuphea 'David Verity' – giant cigar plant
• Cuphea glutinosa – Mexican heather
• Cuphea ignea 'Sugarbells'
• Cuphea micropetala – Mexican giant cigar plant
• Cupressus
• Cupressus arizonica 'Blue Ice' – Arizona cypress
• Cupressus arizonica 'Carolina Sapphire' – Arizona cypress
• Cupressus arizonica 'Limelight' – yellow Arizona cypress
• Cupressus arizonica 'Sapphire Skies' – Arizona cypress
• Cupressus arizonica var. stephensonii (dwarf form) – Cuyamaca cypress
• Cupressus arizonica 'Sulfurea' – yellow Arizona cypress
• Cupressus darjeelingensis – Benghal cypress
• Cupressus funebris – Chinese weeping cypress
• Cupressus guadalupensis var. forbesii – Tecate cypress
• Cupressus nootkatensis 'Green Arrow' – weeping-column Nootka falsecypress
• Cupressus torulosa – Himalayan cypress
• Cupressus vietnamensis – golden Vietnamese cypress
• ×Cuprocyparis leylandii 'Gold Rider Silver' – variegated Leyland cypress
• ×Cuprocyparis leylandii 'Green Spire' – Leyland cypress
• Curcuma petiolata – hidden cone ginger
• Curcuma petiolata 'Emperor' – variegated hidden ginger
• Cyanus cheiranthifolius
• Cycas revoluta – sago palm
• Cyclamen africanum – African cyclamen
• Cyclamen coum – hardy cyclamen
• Cyclamen graecum – Greek cyclamen
• Cyclamen hederifolium – hardy cyclamen
• Cyclamen hederifolium Album Group (silver leaf) – white flowered hardy cyclamen
• Cyclamen hederifolium Ashwood Nurseries Silver Leaf Group – hardy cyclamen
• Cyclamen hederifolium (Corfu Red) – hardy cyclamen
• Cyclamen hederifolium var. hederifolium f. albiflorum – white flowered hardy cyclamen
• Cyclamen hederifolium (pewter arrowhead form) – hardy cyclamen
• Cyclamen purpurascens – alpine cyclamen
• Cyclamen rohlfsianum – Rohlf's cyclamen
• Cyclamen ×whiteiae – hybrid cyclamen
• Cylindropuntia davisii × C. kleiniae 'Golden Lion'
• Cylindropuntia imbricata var. arborscens 'Inermis' – spineless tree cholla
• Cylindropuntia imbricata 'Mosaic Melody'
• Cylindropuntia imbricata var. viridiflorus – Santa Fe cholla
• Cylindropuntia kleiniae – cholla tree cactus
• Cylindropuntia whipplei 'Snow Leopard' – Whipple cholla
• Cylindropuntia whipplei var. whipplei – Whipple cholla
• Cymbalaria muralis – Kenilworth ivy
• Cymbidium sinense 'Da Xun' – boat orchid
• Cynanchum ascyrifolium
• Cynara humilis – dwarf artichoke
• Cynara syriaca – wild artichoke
• Cypella herbertii subsp. brevicristata
• Cyperus albostriatus 'Nanus' – dwarf umbrella plant
• Cyperus albostriatus 'Variegatus' – variegated dwarf umbrella plant
• Cyperus alternifolius – umbrella plant
• Cyrilla racemiflora 'Graniteville' – titi
• Cyrilla racemiflora var. parviflora (Franklin Co., FL) – American cyrilla
• Cyrilla racemiflora 'Tom Patrick' – titi
• Cyrilla racemiflora 'Woodlanders Littleleaf' – titi
• Cyrtomium – holly fern
• Cyrtomium caryotideum – holly fern
• Cyrtomium falcatum 'Butterfieldii' – Butterfield's holly fern
• Cyrtomium falcatum 'Rochfordianum' – Japanese holly fern
• Cyrtomium fortunei 'Ulleung-do' – Fortune's holly fern
• Cyrtomium tsinglingense 'Li Ping'

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D

• Dahlia – dahlia
• Dahlia atropurpurea
• Dahlia 'Bishop of Canterbury' – garden dahlia
• Dahlia 'Bishop of Llandaff' – garden dahlia
• Dahlia 'Bishop of York' – garden dahlia
• Dahlia 'Bishop's Children'
• Dahlia 'Classic Elise' – garden dahlia
• Dahlia 'Classic Giselle' – garden dahlia
• Dahlia 'Classic Summertime' – garden dahlia
• Dahlia coccinea – garden dahlia
• Dahlia cf. coccinea
• Dahlia – Dalina Maxi Colima garden dahlia
• Dahlia – Dalina Maxi Tampico garden dahlia
• Dahlia (ex. 'Knockout') – garden dahlia
• Dahlia (ex. 'Roxy') – garden dahlia
• Dahlia imperialis – tree dahlia
• Dahlia imperialis (double white) – tree dahlia
• Dahlia 'Joliet' – garden dahlia
• Dahlia 'Knockout' – Mystic Illusion garden dahlia
• Dahlia 'Roodkapje' – garden dahlia
• Dahlia sorensenii
• Dalbergia hupeana – rosewood
• Danae racemosa – poet's laurel
• Daphne ×burkwoodii 'Silveredge' – daphne
• Daphne laureola subsp. philippi – spurge-laurel
• Daphne ×neapolitana 'Meon' – hybrid daphne
• Daphne odora 'DapJur02' – Perfume Princess White fragrant winter daphne
• Daphne odora 'Hewreb' – Rebecca variegated winter daphne
• Daphne odora 'Mae-jima' – variegated winter daphne
• Daphne odora ('Nakafu' sport) – winter daphne
• Daphne odora 'Shinano Nishiki' – variegated winter daphne
• Daphne odora 'Sweet Amethyst' – fragrant winter daphne
• Daphne pseudomezereum 'Ginso' – winter daphne
• Daphne pseudomezereum 'Mikado' – winter daphne
• Daphne pseudomezereum (orange flower) – winter daphne
• Daphne pseudomezereum (white flower) – winter daphne
• Daphne pseudomezereum 'Yahiko' – winter daphne
• Daphne pseudomezereum 'Yamato' – winter daphne
• Daphne ×susannae 'Tage Lundell' – hybrid daphne
• Daphniphyllum cf. calycinum – daphniphyllum
• Daphniphyllum aff. glaucescens
• Daphniphyllum macropodum – false daphne
• Daphniphyllum aff. macropodum – false daphne
• Daphniphyllum paxianum
• Daphniphyllum pentandrum
• Daphniphyllum teijsmannii 'Mountain Dove' – Japanese daphniphyllum
• Dasylirion berlandieri – blue sotol
• Dasylirion gentryi – Gentry's sotol
• Dasylirion glaucophyllum – blue sotol
• Dasylirion glaucophyllum 'Marbles Park' – blue sotol
• Dasylirion leiophyllum – green sotol
• Dasylirion texanum – Texas sotol
• Datura
• Davallia mariesii 'Korea Rocks' – rabbit's foot fern
• Davidia involucrata 'Aya Nishiki' – variegated dove tree
• Davidia involucrata 'Lady Dahlia' – dove tree
• Delosperma 'Florsaika'
• Delosperma 'John Proffitt' – Table Mountain ice plant
• Delosperma 'Lavender Ice' – ice plant
• Delosperma 'P001s' – Fire Spinner iceplant
• Delosperma sutherlandii – Sutherland's hardy ice-plant
• Delosperma 'T18-2' – Ocean Sunset Orange Vibe ice plant
• Delosperma 'T18-5' – Ocean Sunset Violet ice plant
• Dendropanax cf. kwangsiensis
• Dendropanax trifidus – tree ivy
• Deparia lobato-crenata
• Deutzia crenata 'Summer Snow' – variegated deutzia
• Deutzia glabrata – smooth deutzia
• Deutzia gracilis – slender deutzia
• Deutzia gracilis 'Duncan' – Chardonnay Pearls slender deutzia
• Deutzia gracilis 'Mincream' – Creme Fraiche slender deutzia
• Deutzia gracilis 'Nikko Dawn' – slender deutzia
• Deutzia gracilis 'Variegata' – slender deutzia
• Deutzia ×hybrida 'Tourbillon Rouge' – pink deutzia
• Deutzia ×kalmiiflora – Kalmia-flowered deutzia
• Deutzia 'NCDX2' – Yuki Cherry Blossom deutzia
• Deutzia pulchra – beautiful deutzia
• Deutzia rubens – white deutzia
• Deutzia scabra 'Variegata' – variegated fuzzy deutzia
• Deutzia taiwanensis – deutzia
• Diabelia spathulata – twin-flowering abelia
• Dianella caerulea 'DBB03' – Cassa Blue flax lily
• Dianella caerulea 'John 316'
• Dianthus – pink
• Dianthus arpadianus var. pumilus – Alpine pink
• Dianthus ×arvernensis
• Dianthus barbatus (red shades)
• Dianthus callizonus
• Dianthus 'Chris's Passalong' – perennial sweet William
• Dianthus 'Cranberry Cocktail' – pinks
• Dianthus deltoides
• Dianthus furcatus 'Bereschei'
• Dianthus giganteiformis subsp. pontederae – pink
• Dianthus giganteus – giant pink
• Dianthus gratianopolitanus 'Bath's Pink' – dianthus
• Dianthus henteri – Henter's pink
• Dianthus hyssopifolius
• Dianthus 'Inshriach Dazzler' – garden pink
• Dianthus 'Key Lime Pie' – American Pie pinks
• Dianthus knappii – yellow carnation
• Dianthus 'KonD1400K6' (Mountain Frost Ruby Glitter) – ruby glitter hardy carnation
• Dianthus myrtinervius
• Dianthus nitidus – Carpathian glossy pink
• Dianthus oschtenicus – dianthus
• Dianthus pinifolius – pine-leaf pink
• Dianthus plumarius 'Rose Tone' – feathered pink
• Dianthus pygmaeus
• Dianthus tianschanicus – Tianshan carnation
• Dianthus 'Uribest52' – Vivid Bright Light dianthus
• Dianthus 'Wicked Witch' – wicked witch hardy pink
• Dianthus 'Wp15 Mow08' – Devon Cottage Pinball Wizard pinks
• Dichelostemma congestum – fork-toothed ookow
• Dichelostemma congestum 'Pink Diamond' – fork-toothed ookow
• Dichelostemma ida-maia – firecracker flower
• Dichroa – evergreen hydrangea
• Dichroa (dwarf)
• Dichroa febrifuga 'Yamaguchi Hardy' – blue evergreen hydrangea
• Dichroa febrifuga 'Yamaguchi Narrow-leaf' – blue evergreen hydrangea
• Dichroa febrifuga 'Yamaguchi White' – evergreen hydrangea
• Dierama adelphicum – wandflower
• Dierama jucundum – wandflower
• Dierama mossii – Compact Angel's Fishing Rod
• Dierama pulcherrimum 'Pink Fairies'
• Diervilla lonicera 'Copper' – copper low bush honeysuckle
• Dietes iridioides – African iris
• Digitalis ciliata – hairy foxglove
• Digitalis ferruginea – rusty foxglove
• Digitalis lutea – straw foxglove
• Digitalis thapsi 'Spanish Peaks' – Spanish foxglove
• Diospyros cathayensis – Cathay persimmon
• Diospyros kaki – oriental persimmon
• Diospyros kaki 'Gwang Yang' – oriental persimmon
• Diospyros kaki 'Shibamichi Weeping' – oriental persimmon
• Diospyros palmeri – persimmon
• Diospyros rhombifolia – princess persimmon
• Diospyros rhombifolia 'Suisei' – princess persimmon
• Diospyros texana – Texas persimmon
• Diospyros virginiana – persimmon
• Diospyros virginiana (Hidden Hollow seedless) – persimmon
• Diospyros virginiana 'JN5' – Magic Fountain weeping persimmon
• Diospyros wilsonii (hort.) – Wilson's persimmon
• Dirca palustris – leatherwood
• Disanthus cercidifolius 'Ena Nishiki' – redbud-hazel
• Disanthus ovatifolius
• Disporopsis – evergreen Solomon's seal
• Disporopsis arisanensis – evergreen Solomon's seal
• Disporopsis aff. aspersa – Chinese evergreen Solomon’s seal
• Disporopsis aspersa (Ogon)
• Disporopsis (ex. China)
• Disporopsis jinfushanensis – dwarf evergreen Solomon's seal
• Disporopsis 'Lily Pads' – evergreen Solomon's seal
• Disporopsis longifolia – evergreen Solomon's seal
• Disporopsis luzoniensis – evergreen Solomon's seal
• Disporopsis pernyi – evergreen Solomon's seal
• Disporopsis aff. pernyi – evergreen Solomon's seal
• Disporopsis pernyi 'Xiao Chengdu' – dwarf evergreen Solomon's seal
• Disporopsis (sp. nova) – evergreen Solomon's seal
• Disporopsis undulata – evergreen Solomon's seal
• Disporum
• Disporum cf. bodinieri – fairy bells
• Disporum cantoniense 'Aureovariegata' – Canton fairy bells
• Disporum cantoniense 'Blueberry Bere' – Canton fairy bells
• Disporum longistylum 'Green Giant' – Chinese fairy bells
• Disporum longistylum 'Shina-no-tsuki' – China moon Solomon's seal
• Disporum megalanthum – fairy bells
• Disporum sessile 'Goldbug' – fairy bells
• Disporum sessile 'Tightwad' – dwarf fairy bells
• Disporum sessile 'Variegatum' – variegated fairy bells
• Disporum smilacinum 'Ki-no-tsukasa' – Japanese fairy bells
• Disporum smilacinum 'Pink Star' – Japanese fairy bells
• Disporum trabeculatum – rigid Solomon's seal
• Disporum trabeculatum 'Nakafu'
• Disporum uniflorum – fairy bells
• Distyliopsis tutcheri
• Distylium – isu tree
• Distylium buxifolium – box leaf isu tree
• Distylium aff. chinense – isu tree
• Distylium myricoides – blue isu
• Distylium myricoides 'sPg-3-007' – Spring Frost white-flush isu tree
• Distylium 'PIIDIST-I' – Emerald Heights isu tree
• Distylium 'PIIDIST-II' – Blue Cascade isu tree
• Distylium 'PIIDIST-V' – Cinnamon Girl isu tree
• Distylium 'PsyOps' – isu tree
• Distylium racemosum – isu tree
• Distylium racemosum 'Guppy' – dwarf isu tree
• Distylium racemosum (white margin) – isu tree
• Distylium (variegated) – variegated Isu tree
• Diuranthera major
• Dorstenia
• Dracunculus vulgaris – dragon arum
• Dracunculus vulgaris – white form No. 1 dragon arum
• Drimiopsis (Kampersus striped) – striped false hosta
• Drimiopsis maculata – African hosta
• Drimiopsis maculata 'Slow Fade' – hardy drimiopsis
• Dryopteris
• Dryopteris affinis subsp. affinis – scaly male fern
• Dryopteris championii – Champion's wood fern
• Dryopteris erythrosora – autumn fern
• Dryopteris erythrosora var. koidzumiana – autumn fern
• Dryopteris erythrosora 'Radiance' – autumn fern
• Dryopteris formosana – Formosa wood fern
• Dryopteris goldiana – Goldie's shield fern
• Dryopteris pycnopteroides – leatherwood fern
• Dryopteris sieboldii – Siebold's wood fern
• Dryopteris sublacera – wood fern
• Duranta erecta 'Cuban Gold'
• Dyckia – dyckia

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E

• Ebenus cretica
• Echeandia texensis – Texas craglily
• Echeandia texensis 'Loma del Potrero Cercado' – Texas shooting star
• Echinacea – coneflower
• Echinacea 'Balscawbux'
• Echinacea 'Balscmelux' – Double Scoop Watermelon Deluxe coneflower
• Echinacea 'Balscrasux'
• Echinacea 'Balsomador'
• Echinacea 'Balsomrosa'
• Echinacea 'Berry'
• Echinacea 'Carmine'
• Echinacea 'Conevin' – Purple Fantasy hybrid coneflower
• Echinacea 'Coral'
• Echinacea 'Evan Saul' – Sundown Big Sky™ coneflower
• Echinacea 'Glowing Dream'
• Echinacea pallida – pale purple coneflower
• Echinacea paradoxa – yellow coneflower
• Echinacea purpurea – eastern purple coneflower
• Echinacea purpurea (ex. 'Ruby Giant') – eastern purple coneflower
• Echinacea purpurea 'Merlot' – eastern purple coneflower
• Echinacea purpurea 'Ruby Giant' – purple coneflower
• Echinacea simulata – wavy-leaf purple coneflower
• Echinacea 'Spicy'
• Echinocereus bistolii var. pseudopectinatus
• Echinocereus chloranthus var. cylindricus
• Echinocereus chloranthus var. milleri
• Echinocereus coccineus var. gurneyi
• Echinocereus dasyacanthus
• Echinocereus enneacanthus var. brevispinus
• Echinocereus fendleri – pinkflower hedgehog cactus
• Echinocereus lloydii
• Echinocereus pectinatus var. wenigeri 'Ctenoides'
• Echinocereus reichenbachii – lace hedgehog cactus
• Echinocereus reichenbachii subsp. baileyi – Bailey's hedgehog cactus
• Echinocereus reichenbachii subsp. baileyi × E. perbellus
• Echinocereus reichenbachii subsp. caespitosus
• Echinocereus reichenbachii var. perbellus – lace hedgehog cactus
• Echinocereus ×roetteri – Roetter's hedgehog cactus
• Echinocereus triglochidiatus – claret cup hedgehog cactus
• Echinocereus triglochidiatus (Alpine Texas form) – claret cup hedgehog cactus
• Echinocereus triglochidiatus var. inermis
• Echinocereus triglochidiatus var. inermis × E. triglochidiatus (White Sands)
• Echinocereus viridiflorus – nylon hedgehog cactus
• Echinodorus bracteatus 'Lantau Lady' – Amazon sword
• Echinodorus cordifolius 'Marble Queen' – creeping burrhead
• Echinops maracandicus – globe thistle
• Echinops tschimganicus
• Echinopsis formosa × (Lobivia bruchii × Echinopsis thelegona)
• Echium vulgare – viper's bugloss
• Echium wildpretii
• Edgeworthia 'Akebono' – red-flowered paperbush
• Edgeworthia chrysantha – golden paperbush
• Edgeworthia chrysantha 'Nanjing Gold' – golden paperbush
• Edgeworthia chrysantha 'Winter Gold' – golden paperbush
• Edgeworthia papyrifera – Japanese paperbush
• Edgeworthia 'Snow Globe' – Japanese paperbush
• Edraianthus graminifolius
• Edraianthus parnassicus
• Edraianthus tenuifolius
• Ehretia dicksonii – Dickson's koda tree
• Elaeagnus pungens 'Chirifu' – variegated silverthorn
• Elaeagnus viridis var. delavayi
• Elaeocarpus decipiens – Japanese blueberry tree
• Eleutherococcus nodiflorus
• Eleutherococcus sieboldianus 'Variegatus' – five-leaf aralia
• Elodea canadensis
• Elymus magellanicus – Magellan wild rye
• Embelia vestita – sour vine
• Emmenopterys henryi – Chinese Emmenopterys
• Encephalartos transvenosus – Modjadi cycad
• Enkianthus campanulatus 'Bovee's Dark Red Stripe' – redvein enkianthus
• Enkianthus campanulatus var. longilobus – redvein enkianthus
• Enkianthus perulatus 'Tsukumo' – white enkianthus
• Enkianthus quinqueflorus – Chinese new year flower
• Enkianthus quinqueflorus 'Pink Chandelier' – Chinese new year flower
• Ephedra chilensis – jointfir
• Ephedra equisetina – blue stem joint fir
• Ephedra fedtschenkoae – joint fir
• Ephedra major – jointfir
• Ephedra regeliana – joint fir
• Ephedra sinica – ephedra
• Epimedium – fairy wings
• Epimedium cf. acuminatum – fairy wings
• Epimedium 'Amber Queen' – fairy wings
• Epimedium davidii (DJHC 681) – fairy wings
• Epimedium 'Domino' – fairy wings
• Epimedium grandiflorum 'Conalba' – Alabaster fairy wings
• Epimedium grandiflorum 'Purple Pixie' – fairy wings
• Epimedium grandiflorum 'Swallowtail' – fairy wings
• Epimedium jinchengshanense
• Epimedium mikinorii
• Epimedium ogisui (DJHC 733) – fairy wings
• Epimedium ×perralchicum 'Frohnleiten' – fairy wings
• Epimedium 'Pretty in Pink' – fairy wings
• Epimedium pubescens – fairy wings
• Epimedium rhizomatosum – fairy wings
• Epimedium sempervirens 'Snowshoe Lake' – fairy wings
• Epimedium 'Songbirds' – fairy wings
• Epimedium stellulatum – star-shaped fairy wings
• Epimedium 'The Giant' – fairy wings
• Epimedium ×versicolor 'Strawberry Blush' – pink fairy wings
• Epimedium ×versicolor 'Sulphureum' – yellow fairy wings
• Epimedium ×warleyense – fairy wings
• Epimedium wushanense – fairy wings
• Epimedium aff. wushanense – fairy wings
• Epimedium xichangense
• Epimedium ×youngianum 'Niveum' – snowy fairy wings
• Epimedium ×youngianum 'Royal Flush' – fairy wings
• Eragrostis elliottii – Elliott's love grass
• Eragrostis spectabilis – purple love grass
• Eranthis hyemalis – winter aconite
• Eremurus 'Lemon Meringue' – foxtail lily
• Erica ×darleyensis 'Furzey' – Darley heath
• Erica ×darleyensis 'White Perfection' – Darley heath
• Erica scoparia
• Erica (white flower)
• Erigeron pulchellus var. pulchellus 'Lynnhaven Carpet' – robin's plantain
• Eriobotrya deflexa – bronze loquat
• Eriobotrya japonica 'Coppertone' – loquat
• Eriobotrya japonica (white splash) – loquat
• Eriobotrya japonica 'Wuling Hardy' – loquat
• Eriolarynx australis 'Lago Azul'
• Eryngium – grassy-leaf sea holly
• Eryngium alpinum – blue star
• Eryngium aquaticum – eryngo
• Eryngium aquaticum var. ravenellii – rattlesnake master
• Eryngium campestre
• Eryngium eburneum – sea holly
• Eryngium elegans – elegant sea holly
• Eryngium luzulifolium – rush-leafed sea holly
• Eryngium megapotamicum – big river sea holly
• Eryngium palmatum – sea holly
• Eryngium pandanifolium – giant sea holly
• Eryngium aff. pandanifolium – pandan-leaved sea holly
• Eryngium planum – flat sea holly
• Eryngium planum 'Blue Glitter' – sea holly
• Eryngium regnellii – sea buckthorn
• Eryngium cf. sanguisorba – burgundy-flowered sea holly
• Eryngium serra – sharp sea holly
• Eryngium venustum – Mexican sea holly
• Eryngium yuccifolium – rattlesnake master
• Erysimum 'Er 07 3-10'
• Erysimum 'G16-227'
• Erysimum jugicola
• Erythranthe lutea
• Erythrina ×bidwillii – coralbean hybrid
• Erythrina crista-galli – cockspur coral tree
• Erythrina crista-galli 'Compacta' – cockspur coral tree
• Erythrina herbacea – coral bean
• Erythronium 'Pagoda' – hybrid dogtooth violet
• Escallonia 'Iveyi'
• Eschscholzia californica 'Golden West' – California poppy
• Escobaria albicolumnaria – common foxtail cactus
• Escobaria dasyacantha
• Escobaria deserti
• Escobaria guadalupensis
• Escobaria missouriensis – Missouri foxtail cactus
• Escobaria missouriensis subsp. asperispina
• Escobaria sneedii
• Escobaria sneedii subsp. leei (yellow flower)
• Escobaria vivipara var. neomexicana
• Eubotrys racemosus – sweetbells
• Eucalyptus amplifolia – cabbage gum
• Eucalyptus camphora – swamp gum
• Eucomis – pineapple lily
• Eucomis 'African Night' – pineapple lily
• Eucomis autumnalis – pineapple lily
• Eucomis autumnalis subsp. clavata – pineapple lily
• Eucomis bicolor – pineapple lily
• Eucomis comosa – pineapple lily
• Eucomis comosa 'Peace Candles' – pineapple lily
• Eucomis comosa 'Sparkling Burgundy' – purple-leaf pineapple lily
• Eucomis (ex. 'Reuben') – pineapple lily
• Eucomis 'Glow Sticks' – pineapple lily
• Eucomis 'Johannesburg' – pineapple lily
• Eucomis 'Leia' – pineapple lily
• Eucomis 'Mini Tuft Bright Pink' – dwarf pink pineapple lily
• Eucomis pole-evansii – Transvaal pineapple lily
• Eucomis 'Reuben' – pineapple lily
• Eucomis 'Safari Adventure' – pineapple lily
• Eucomis 'Smoking Joe' – pineapple lily
• Eucomis 'Tugela Gem' – pineapple lily
• Eucomis 'Tugela Jade' – hybrid pineapple lily
• Euonymus – Vietnamese euonymus
• Euonymus alatus 'Select' – Fireball burning bush
• Euonymus americanus 'Narrowleaf' – narrowleaf hearts-a-bursting
• Euonymus bungeanus – winterberry euonymus
• Euonymus carnosus – fleshy-flowered spindletree
• Euonymus europaeus 'Red Cascade' – European spindle
• Euonymus fortunei 'Harlequin' – wintercreeper euonymus
• Euonymus fortunei 'Interbolwji' – Blondy wintercreeper euonymus
• Euonymus fortunei 'Wolong Ghost' – silvervein wintercreeper euonymus
• Euonymus grandiflorus
• Euonymus lanceolatus
• Euonymus myrianthus – many-flowered spindle
• Euonymus nitidus – Chinese spindletree
• Euonymus oxyphyllus – Korean spindle tree
• Euonymus schensianus 'Beni Yakko' – spindle tree
• Euonymus cf. spraguei – Sprague's euonymus -- MWT14-988
• Eupatorium 'Phantom' – Joe Pye weed
• Euphorbia
• Euphorbia amygdaloides var. robbiae – Mrs. Robb's bonnet
• Euphorbia 'Canyon Gold' – spurge
• Euphorbia corollata 'Carolina Snow' – flowering spurge
• Euphorbia 'Dean's Hybrid' – Dean's spurge
• Euphorbia lathyris – caper spurge
• Euphorbia rigida – rigid spurge
• Euptelea polyandra – Fusakazura
• Eurya alata – eurya
• Eurya japonica – eurya
• Eurya japonica 'Ginyo Hisakaki' – eurya
• Eurya japonica 'Golden Spreader' – golden eurya
• Eurya leptophylla – eurya
• Eurybia divaricata – white wood aster
• Eurybia divaricata 'Tiny Hiney'
• Eurybia mirabilis
• Euscaphis japonica – Korean sweetheart tree
• Eustrephus latifolius – wombat berry
• Eutrochium purpureum 'Big Umbrella' – Joe-Pye weed
• Eutrochium (white) – Joe Pye weed
• Evolvulus sericeus
• Exbucklandia tonkinensis
• Exochorda 'Blizzard' – Snow Day pearlbush
• Exochorda ×macrantha 'Bailmoon' – First Editions Lotus Moon pearlbush
• Eysenhardtia orthocarpa – kidneywood
• Eysenhardtia orthocarpa (Cochise County) – kidneywood

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F

• Fagus grandifolia – American beech
• Fagus grandifolia (Bill Barnes dwarf) – American beech
• Fagus grandifolia 'White Lightning' – American beech
• Fagus hayatae – Taiwan beech
• Fagus lucida – shining beech
• Fagus sylvatica 'Faux de Verzy' – beech
• Fagus sylvatica 'Nicole'
• Fagus sylvatica 'Rohan Minaret' – columnar purple European beech
• Fallugia paradoxa – Apache plume
• Farfugium japonicum – leopard plant
• Farfugium japonicum 'Aureomaculatum' – spotted leopard plant
• Farfugium japonicum var. formosanum – leopard plant
• Farfugium japonicum var. formosanum 'Green Teeth' – leopard plant
• Farfugium japonicum 'Shishi Botan' – leopard plant
• Farfugium japonicum (variegated)
• Farfugium japonicum 'Yaezaki' – leopard plant
• Farfugium 'Last Dance' – leopard plant
• Fargesia rufa – clumping bamboo
• Fargesia rufa 'Oprins Selection' – Green Panda clumping bamboo
• Fargesia rufa 'Sunset Glow' – clumping bamboo
• ×Fatshedera lizei 'Angyo Star' – variegated tree ivy
• ×Fatshedera lizei 'Pia' – variegated tree ivy
• Fatsia japonica – Japanese fatsia
• Fatsia japonica (ex. 'Sparky') – Japanese fatsia
• Fatsia japonica 'Murakumo Nishiki' – cloud brocade Japanese fatsia
• Fatsia japonica 'Sparky' – Japanese aralia
• Fatsia japonica (splashed) – Japanese fatsia
• Fatsia japonica 'Variegata' – Japanese fatsia
• Fatsia polycarpa (Shitou giant form) – Taiwan fatsia
• Fendlera wrightii – Wright's fendlerbush
• Fessia greilhuberi
• Ficaria verna 'Coppernob' – fig buttercup
• Ficaria verna 'Double Mud'
• Ficaria verna Flore Pleno Group – double-flowered fig buttercup
• Ficus
• Ficus carica 'Chicago Hardy' – edible fig
• Ficus carica 'Conadria' – edible fig
• Ficus carica 'Majoam' – Little Miss Figgy edible fig
• Ficus carica 'Mission' – edible fig
• Ficus carica 'Panachee' – edible fig
• Ficus carica 'Santa Cruz Dark' – edible fig
• Ficus carica 'UCR 347-1' – caprifig
• Ficus carica 'Violette de Bordeaux' – edible fig
• Ficus gasparriniana var. laceratifolia – Christmas fig
• Ficus johannis subsp. afghanistanica 'Silver Lyre' – Afghan fig
• Ficus palmata – Punjab fig
• Ficus pumila 'Quercifolia' – oak leaf creeping fig
• Ficus pumila 'Variegata' – creeping fig
• Filipendula multijuga
• Filipendula vulgaris – dropwort
• Firmiana simplex – Chinese parasol tree
• Flueggea suffruticosa – fountain hardhack
• Foeniculum vulgare 'Rubrum' – bronze fennel
• Forestiera angustifolia 'Woodlander's Weeping' – desert olive
• Forestiera pubescens var. parvifolia – desert olive
• Forsythia – forsythia
• Forsythia 'Courtasol' – Gold Tide forsythia
• Forsythia giraldiana 'Golden Times' – Giraldi's forsythia
• Forsythia ×intermedia 'Courdijau' – Golden Peep forsythia
• Forsythia ×intermedia 'White Gold' – variegated forsythia
• Forsythia koreana 'Kumson' – Korean forsythia
• Forsythia mandshurica 'Vermont Sun' – Manchurian forsythia
• Forsythia 'New Hampshire Gold' – dwarf forsythia
• Forsythia viridissima 'McKCitrine' – Citrus Swizzle variegated forsythia
• Fortunearia sinensis
• Fothergilla gardenii 'Blue Elf' – dwarf fothergilla
• Fothergilla gardenii 'Chattanooga' – dwarf fothergilla
• Fothergilla gardenii 'Suzanne' – dwarf fothergilla
• Fothergilla ×intermedia 'Mount Airy' – fothergilla
• Fothergilla ×intermedia 'Red Licorice' – witch-alder
• Fothergilla milleri – Miller's witch alder
• Fothergilla milleri 'Redneck Nation' – Miller's witch alder
• Fragaria chiloensis – beach strawberry
• Fragaria 'Lipstick' – strawberry
• Fraxinus angustifolia subsp. oxycarpa – desert ash
• Fraxinus excelsior 'Aureafolia' – Golden Desert European ash
• Fraxinus greggii – littleleaf ash
• Fraxinus insularis – Chinese flowering ash
• Fraxinus lanuginosa – Japanese ash
• Fraxinus quadrangulata – blue ash
• Fraxinus sieboldiana – Japanese flowering ash
• Fraxinus sieboldiana 'Rising Sun' – Japanese flowering ash
• Fritillaria meleagris (mixed)
• Fritillaria persica
• Fritillaria uva-vulpis
• Fritillaria verticillata
• Fuchsia hatschbachii – Hatschbach's fuchsia
• Fuchsia 'Sanihanf' – Angel Earrings Cascading fuchsia
• Fuchsia ('Sanihanf' ex)
• Fumana ericifolia

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G

• Gaillardia aestivalis 'Glitz 'n Glamour' – yellow lanceleaf blanketflower
• Gaillardia aestivalis var. winkleri – Texas firewheel
• Gaillardia aestivalis var. winkleri 'Grape Sensation' – purple Texas firewheel
• Galanthus 'Bertram Anderson' – snowdrop
• Galanthus 'Curly' – snowdrop
• Galanthus elwesii – snowdrop
• Galanthus elwesii 'Cedric's Prolific' – snowdrop
• Galanthus elwesii var. monostictus – one-spotted giant snowdrop
• Galanthus elwesii 'Polar Bear'
• Galanthus 'Fiona's Gold' – snowdrop
• Galanthus gracilis
• Galanthus (Greatorex double) – snowdrop
• Galanthus 'Heffalump' – snowdrop
• Galanthus 'Homersfield' – snowdrop
• Galanthus krasnovii
• Galanthus 'Longnor Hall'
• Galanthus nivalis
• Galanthus nivalis 'Flore Pleno'
• Galanthus nivalis 'Magnet' – snowdrop
• Galanthus nivalis 'Viridi-apice'
• Galanthus nivalis 'Warei'
• Galanthus plicatus subsp. byzantinus 'Three Ships' – Turkish snowdrop
• Galanthus plicatus 'Wandlebury Ring' – snowdrop
• Galanthus plicatus 'Wendy's Gold' – snowdrop
• Galanthus reginae-olgae – Queen Olga's snowdrop
• Galanthus reginae-olgae (John Lonsdale seedling)
• Galanthus reginae-olgae (Judith Tyler long pedicel)
• Galanthus 'Sam Arnott' – snowdrop
• Galanthus samothracicus
• Galanthus 'Wasp' – snowdrop
• Galanthus woronowii – giant snowdrop
• Galanthus (yellow edge) – snowdrop
• Galtonia candicans
• Gardenia '4Bellacj01' – Swan Maiden Cape jasmine
• Gardenia jasminoides – Cape jasmine
• Gardenia jasminoides (3rd gen. seedlings of 'Crown Jewel') – Cape jasmine
• Gardenia jasminoides 'Buttons' – Cape jasmine
• Gardenia jasminoides 'Chuck Hayes' – Cape jasmine
• Gardenia jasminoides 'Crown Jewel' – Cape jasmine
• Gardenia jasminoides 'Cutie Pie' – Cape jasmine
• Gardenia jasminoides 'Kaleidoscope' – Cape jasmine
• Gardenia jasminoides 'Kleim's Hardy' – Cape jasmine
• Gardenia jasminoides 'Leeone' – Jubilation Cape jasmine
• Gardenia jasminoides 'Lynn Lowrey' – Cape jasmine
• Gardenia jasminoides 'Madga 1' – Heaven Scent Cape jasmine
• Gardenia jasminoides 'Ogon-no-hana' – Gold Doubloon Cape jasmine
• Gardenia jasminoides 'SMNGDUO' – Pillow Talk Cape jasmine
• Gardenia jasminoides (variegated, double flower) – Cape jasmine
• Gardenia jasminoides (variegated, single flower) – Cape jasmine
• Gardenia jasminoides (variegated, single flower No. 2) – Cape jasmine
• Gardenia jasminoides 'Whispering Pines' – Cape jasmine
• Gardenia jasminoides 'White Gem' – Cape jasmine
• Gardenia 'PS-2013-3' – Sweetheart Cape jasmine
• Gardenia 'PS-2013-4' – Celestial Star Cape jasmine
• Gaultheria pyroloides – wintergreen
• Gaultheria shallon 'Gaulsid12' – Cascade Sunrise salal
• Gaultheria shallon 'Gaulsidh4' – Cascade Carpet salal
• Gelasine elongata – dimpled iris
• Gelsemium sempervirens 'Pride of Augusta' – double Carolina jessamine
• Gentiana linearis
• Gentiana pneumonanthe
• Geranium ×cantabrigiense 'ABPP' – Crystal Rose cranesbill
• Geranium ×cantabrigiense 'Karmina' – cranesbill
• Geranium erianthum
• Geranium macrorrhizum 'Bevan's Variety' – geranium
• Geranium macrorrhizum 'Spessart' – cranesbill
• Geranium maculatum 'Espresso' – cranesbill
• Geranium ×oxonianum – hardy geranium
• Geranium ×oxonianum 'Claridge Druce' – cranesbill hardy geranium
• Geranium phaeum 'Samobor' – dusky cranesbill
• Geranium pratense 'Boom Chocolatta' – cranesbill
• Geranium ruprechtii
• Geranium sanguineum 'Album' – bloody cranesbill
• Geranium sanguineum 'Glenluce' – bloody cranesbill
• Geranium sanguineum 'Max Frei' – bloody cranesbill
• Geranium sanguineum 'Pink Pouffe' (Jolly Jewel series) – bloody cranesbill
• Geranium sanguineum – Vision Violet bloody cranesbill
• Geranium 'Tiny Monster' – hardy geranium
• Geranium tuberosum
• Geranium versicolor
• Geranium yoshinoi
• Gerbera – Garvinea Sweet Dreams Gerber daisy
• Ginkgo biloba – maidenhair tree
• Ginkgo biloba 'Aquatorium' – maidenhair tree
• Ginkgo biloba 'Blagon' – Goldspire maidenhair tree
• Ginkgo biloba 'Gnome' – maidenhair tree
• Ginkgo biloba 'Jagged Jade' – maidenhair tree
• Ginkgo biloba 'Jehoshaphat' – maidenhair tree
• Ginkgo biloba 'JN9' – Sky Tower maidenhair tree
• Ginkgo biloba 'Majestic Butterfly' – maidenhair tree
• Ginkgo biloba 'Mariken' – maidenhair tree
• Ginkgo biloba 'Mayfield' – maidenhair tree
• Ginkgo biloba 'Munchkin' – maidenhair tree
• Ginkgo biloba 'Pendula' – maidenhair tree
• Ginkgo biloba 'Robbie's Twist' – maidenhair tree
• Ginkgo biloba 'Ross Moore' – maidenhair tree
• Ginkgo biloba 'Saratoga' – maidenhair tree
• Ginkgo biloba 'Sunstream' – maidenhair tree
• Ginkgo biloba 'Troll' – maidenhair tree
• Ginkgo biloba 'Tschi Tschi' – maidenhair tree
• Ginkgo biloba 'Weeping Wonder' – maidenhair tree
• Ginkgo biloba 'White Lightning' – maidenhair tree
• Gladiolus 'Atomic'
• Gladiolus communis – gladiolus
• Gladiolus dalenii 'Bolivian Peach' – African gladiolus
• Gladiolus dalenii 'Halloweenie' – African gladiolus
• Gladiolus 'Flevo Jive'
• Gladiolus 'Flevo Kosmic' – hybrid gladiolus
• Gladiolus ×gandavensis – hybrid gladiolus
• Gladiolus nanus 'Halley'
• Gladiolus papilio – butterfly gladiolus
• Gladiolus saundersii – gladiola
• Gladiolus 'Zizane'
• Glandularia '2305C-54'
• Glandularia canadensis – rose verbena
• Glandularia canadensis (white) – rose verbena
• Glandularia – Empress Sun White Blush verbena
• Glandulicactus uncinatus
• Glaucium squamigerum
• Gleditsia japonica var. koraiensis – Korean honey locust
• Gleditsia triacanthos 'JFS GMorgenson1' – Northern Sentinel honey locust
• Globularia bisnagarica – ball flower
• Globularia cordifolia – globe daisy
• Globularia pseudo-nana
• Globularia valentina – globe daisy
• Gloriosa superba – gloriosa lily
• Gloriosa superba 'Rothschildiana' – gloriosa lily
• Gomphostigma virgatum
• Gorgonidium intermedium
• Grevillea australis – spider flower
• Grevillea 'Neil Bell' – spider flower
• Grindelia aegialitis
• Gymnocalycium andreae
• Gymnocalycium deeszianum – barrel cactus
• Gymnocladus dioicus 'Kentucky Colonel' – Kentucky coffeetree
• Gypsophila briquetiana

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H

• Habranthus – hybrid rain-lily
• Habranthus 'Candy Cane'
• Habranthus ×floryi (purple base) – hybrid rain-lily
• Habranthus gracilifolius
• Habranthus (hot pink) – rain-lily
• Habranthus martinezii
• Habranthus 'Pink Flamingos' – hybrid rain-lily
• Habranthus robustus – rain-lily
• Habranthus robustus 'Russell Manning' – rain-lily
• Habranthus tubispathus var. roseus – rain-lily
• Habranthus tubispathus var. texanus – copper lily
• Hakea nodosa
• Hakonechloa macra 'All Gold' – Japanese forest grass
• Halesia diptera – two-winged silverbell
• Halesia diptera var. magniflora – two-winged silverbell
• Halesia tetraptera 'Silver Splash' – Carolina silverbell
• Hamamelis 'Doerak' – witch hazel
• Hamamelis ×intermedia 'Antonieta' – witch hazel
• Hamamelis ×intermedia 'Barbara' – witchhazel
• Hamamelis ×intermedia 'Basma' – witchhazel
• Hamamelis ×intermedia 'Candlelit Vigil' – witchhazel
• Hamamelis ×intermedia 'Diane' – witch hazel
• Hamamelis ×intermedia 'Feuerzauber' – witch hazel
• Hamamelis ×intermedia 'Jelena' – witch hazel
• Hamamelis ×intermedia 'Orange Peel' – witch hazel
• Hamamelis ×intermedia 'Rubinstar' – witch hazel
• Hamamelis ×intermedia 'Tsukuba-no-Kurenai' – witch hazel
• Hamamelis japonica 'Little Yamaguchi' – dwarf Japanese witch hazel
• Hamamelis mollis 'Early Bright' – Chinese witch hazel
• Hamamelis ovalis – running witch hazel
• Hamamelis vernalis – Ozark witch hazel
• Hamamelis vernalis 'Blue Moon' – Ozark witch hazel
• Hamamelis vernalis 'Burmazam' – Burndt Mahogany Ozark witch hazel
• Hamamelis vernalis 'Christmas Cheer' – Ozark witch hazel
• Hamamelis vernalis 'Goleczam' – Golden Eclipse Ozark witch hazel
• Hamamelis vernalis 'KLMNINETEEN' – Autumn Embers Ozark witch hazel
• Hamamelis vernalis 'Quasimodo' – Ozark witch hazel
• Hamamelis vernalis 'Squib' – Ozark witch hazel
• Hamamelis virginiana var. henryae – small-leaved witch hazel
• Hamamelis virginiana 'Ice Queen' – witchhazel
• Hamamelis virginiana 'Little Prospect' – common witch hazel
• Hamamelis virginiana var. mexicana – Mexican witch hazel
• Harperocallis flava – Harper's beauty
• Hedera canariensis 'Gloire de Marengo' – Canary Island ivy
• Hedera colchica – Persian ivy
• Hedera colchica 'Dentata' (adult form) – Persian ivy
• Hedera colchica 'Sulphur Heart' – Persian ivy
• Hedera helix – English ivy
• Hedera helix 'Glacier' – English ivy
• Hedera helix 'Glacier' (adult form) – English ivy
• Hedera helix 'Lexington Gardens' – English ivy
• Hedera helix 'Treetop' (adult form) – English ivy
• Hedera nepalensis
• Hedera pastuchovii (adult form) – Russian ivy
• Hedera rhombea 'Creme de Menthe' – variegated adult Japanese ivy
• Hedera rhombea 'Korean Dwarf' – Japanese ivy
• Hedera rhombea 'Ryukyu Island' – Japanese ivy
• Hedychium – ginger lily
• Hedychium 'Betty Hodge' – hardy ginger lily
• Hedychium coccineum – red ginger lily
• Hedychium coccineum 'Disney' – red ginger lily
• Hedychium coronarium – butterfly ginger lily
• Hedychium 'Daniel Weeks' – hardy ginger lily
• Hedychium deceptum – red ginger lily
• Hedychium 'Dr. Moy' – ginger lily
• Hedychium (dwarf orange) – ginger lily
• Hedychium 'Elizabeth' – ginger lily
• Hedychium (ex. 'Slim's Orange') – ginger lily
• Hedychium gardnerianum 'Extendum' – kahili ginger
• Hedychium aff. gardnerianum (Hinkley Arunachal Pradesh 2018) – kahili ginger
• Hedychium gardnerianum 'Tara' – kahili ginger
• Hedychium 'Gold Flame' – hardy ginger lily
• Hedychium 'Golden Butterfly' – ginger lily
• Hedychium 'Hawaiian Pink' – ginger lily
• Hedychium horsfieldii – ginger lily
• Hedychium ×kewense – ginger lily
• Hedychium 'Kinkaku' – ginger lily
• Hedychium 'Molten Gold' – ginger lily
• Hedychium 'Moy Giant' – ginger lily
• Hedychium 'Peach Delight' – ginger lily
• Hedychium 'Pink Princess' – ginger lily
• Hedychium 'Pink V' – ginger lily
• Hedychium 'Sherry Baby' – ginger lily
• Hedychium 'Slim's Orange' – hardy ginger lily
• Hedychium stenopetalum – ginger lily
• Hedychium 'Tai Conch Pink' – ginger lily
• Hedychium 'Tai Emperor' – pink ginger lily
• Hedychium 'Tai Golden Goddess' – ginger lily
• Hedychium 'Tai Savannah' – ginger lily
• Hedychium aff. tengchongense – ginger lily
• Hedychium thyrsiforme × H. maximum – ginger lily
• Hedychium 'Vanilla Ice' – variegated ginger lily
• Hedychium (Vietnam) – ginger lily
• Hedychium 'White Starburst' – ginger lily
• Heimia salicifolia – shrubby yellowcrest
• Helianthella quinquenervis
• Helianthemum lippii
• Helianthus angustifolius – swamp sunflower
• Helianthus heterophyllus – variableleaf sunflower
• Helianthus simulans – swamp sunflower
• Heliotropium amplexicaule – clasping heliotrope
• Heliotropium 'WNHPAULAV'
• Helleborus – hellebore
• Helleborus 'ABCRD01' – Penny's Pink lenten rose
• Helleborus 'Abcrd02' – Frostkiss Anna's Red lenten rose
• Helleborus argutifolius – Corsican hellebore
• Helleborus atrorubens
• Helleborus ×ballardiae 'Coseh 720' – Spring Party hybrid hellebore
• Helleborus ×ballardiae 'Coseh 810' – HGC Merlin hybrid hellebore
• Helleborus ×ballardiae 'Raulston Remembered' – hybrid hellebore
• Helleborus bocconei
• Helleborus croaticus – Croatian hellebore
• Helleborus croaticus 'Bells of the Ball' – Croatian hellebore
• Helleborus 'Epb 20'
• Helleborus 'Epb 29' – Frostkiss Dorothy's Dawn hybrid hellebore
• Helleborus 'Epb 30' – Frostkiss Dana's Dulcet hybrid hellebore
• Helleborus ×ericsmithii – hellebore
• Helleborus ×ericsmithii 'Coseh 790' – HGC Shooting Star hybrid hellebore
• Helleborus ×ericsmithii 'Pirouette' – hybrid hellebore
• Helleborus ×ericsmithii 'Winter Moonbeam' – hybrid hellebore
• Helleborus ×ericsmithii 'Winter Sunshine' – hybrid hellebore
• Helleborus foetidus – bear's foot hellebore
• Helleborus foetidus 'Gold Bullion' – golden bear's foot hellebore
• Helleborus foetidus 'Piccadilly' – bear's foot hellebore
• Helleborus foetidus 'Pontarlier' – bear's foot hellebore
• Helleborus ×glandorfensis 'Coseh 4100' – HGC Ice 'N Roses Red hybrid hellebore
• Helleborus ×glandorfensis 'Coseh 4500' – HGC Ice N' Roses White hybrid hellebore
• Helleborus ×glandorfensis 'COSEH 5000' – Ice N' Roses Picotee hybrid hellebore
• Helleborus ×glandorfensis 'COSEH 5100' – Ice N' Roses Dark Picotee hybrid hellebore
• Helleborus ×glandorfensis 'Coseh 5400' – Ice N' Roses Rosado lenten rose
• Helleborus ×glandorfensis – HGC Ice N' Roses Rose hybrid hellebore
• Helleborus ×hybridus – Lenten rose
• Helleborus ×hybridus (Ashwood Garden hybrids) – Lenten rose
• Helleborus ×hybridus (best yellow) – Lenten rose
• Helleborus ×hybridus 'Cattleya Semline' – Lenten rose
• Helleborus ×hybridus (dark pink shades) – Lenten rose
• Helleborus ×hybridus 'Golden Sunrise' – Winter Jewels Lenten rose
• Helleborus ×hybridus × H. multifidus subsp. hercegovinus
• Helleborus ×hybridus (mid-pink shades) – Lenten rose
• Helleborus ×hybridus (pale pink shades) – Lenten rose
• Helleborus ×hybridus 'Peppermint Ice' – Winter Jewels Lenten rose
• Helleborus ×hybridus 'Red Lady' – Lenten rose
• Helleborus ×hybridus (Royal Heritage strain) – Lenten rose
• Helleborus ×hybridus (variegated) – Lenten rose
• Helleborus liguricus – hellebore
• Helleborus niger – Christmas rose
• Helleborus ×nigercors 'Honeyhill Joy' – christmas rose
• Helleborus odorus – fragrant hellebore
• Helleborus 'Rd09'
• Helleborus 'Rio Carnival' – Honeymoon hellebore
• Helleborus ×sternii – Stern's hybrid hellebore
• Helleborus ×sternii (Montrose strain) – Stern's hybrid hellebore
• Helleborus
• Helleborus
• Helleborus torquatus – collared hellebore
• Helleborus viridis – green hellebore
• Helwingia chinensis var. crenata
• Helwingia chinensis 'Raulston King'
• Helwingia japonica – Japanese helwingia
• Helwingia japonica (heavy variegation)
• Helwingia japonica var. japonica – Japanese helwingia
• Helwingia japonica (variegated)
• Helwingia omeiensis – Mt. Emei helwingia
• Hemerocallis – daylily
• Hemerocallis altissima 'Flyover' – night-blooming daylily
• Hemerocallis – Apricot Towers daylily
• Hemerocallis 'Autumn Minaret' – daylily
• Hemerocallis 'Autumn Pioneer' – daylily
• Hemerocallis 'Autumn Prince' – daylily
• Hemerocallis – aff. 'Berwyn' daylily
• Hemerocallis 'Bitsy' – daylily
• Hemerocallis 'Black Arrowhead' – daylily
• Hemerocallis 'Calypso' – daylily
• Hemerocallis 'Challenger' – daylily
• Hemerocallis citrina – daylily
• Hemerocallis 'Colonel Southall' – daylily
• Hemerocallis coreana – daylily
• Hemerocallis 'Cosmic Struggle' – daylily
• Hemerocallis 'Darrow' – daylily
• Hemerocallis fulva – orange daylily
• Hemerocallis 'Going Bananas' – daylily
• Hemerocallis 'Hint of Blue' – daylily
• Hemerocallis 'Jordan's Jazz' – daylily
• Hemerocallis 'Lady Fingers' – daylily
• Hemerocallis 'Leebea Orange Crush' – daylily
• Hemerocallis 'Lil' Red Wagon' – daylily
• Hemerocallis littorea – coastal daylily
• Hemerocallis nana – daylily
• Hemerocallis 'Neon Flamingo' – daylily
• Hemerocallis 'Nona's Garnet Spider' – daylily
• Hemerocallis 'Nosferatu' – daylily
• Hemerocallis 'Penny's Worth' – daylily
• Hemerocallis 'Primal Scream' – daylily
• Hemerocallis 'Pterodactyl Eye' – daylily
• Hemerocallis 'Purity' – daylily
• Hemerocallis 'Ruby Spider' – daylily
• Hemerocallis 'Shelby's' – daylily
• Hemerocallis 'Siloam Peony Display' – daylily
• Hemerocallis 'South Seas' – daylily
• Hemerocallis 'Statuesque' – daylily
• Hemerocallis 'Taos' – daylily
• Hemerocallis 'Thin Man' – daylily
• Hemerocallis 'Tiger Blood' – daylily
• Hemerocallis 'VT Spirit' – daylily
• Hemerocallis yezoensis – daylily
• Hemiboea – hemiboea
• Hemiboea bicornuta
• Hemiboea gracilis – slender false sinningia
• Hemiboea subacaulis var. jiangxiensis 'Jiangxi Bells' – false sinningia
• Hemiboea subcapitata – glossy false sinningia
• Heptacodium miconioides – seven-son flower
• Heptapleurum
• Heptapleurum delavayi – hardy schefflera
• Heptapleurum delavayi 'Windcliff Lace' – Delavay's schefflera
• Herbertia pulchella – Herbert's iris
• Hermodactylus tuberosus
• Hertia cheirifolia – barbary ragwort
• Hesperaloe 'Arizona Sunset' – red yucca
• Hesperaloe campanulata – bell flower hesperaloe
• Hesperaloe campanulata (Sierra Chiquita form) – bell flower hesperaloe
• Hesperaloe funifera – false yucca
• Hesperaloe parviflora – red yucca
• Hesperaloe parviflora 'Arizona Sunrise' – red yucca
• Hesperaloe parviflora 'Coral Glow' – red yucca
• Hesperaloe parviflora 'Straight Up Red' – red yucca
• Heteropterys angustifolia – narrowleaf redwing
• Heteropterys glabra – redwing
• Heuchera 'Big Top Caramel Apple' – coral bells
• Heuchera 'Black Pearl' – coral bells
• Heuchera 'Carnival Burgundy Blast' – coral bells
• Heuchera 'Forever Purple' – coral bells
• Heuchera himalayensis – Himalayan coral bells
• Heuchera 'Peach Smoothie'
• Heuchera 'Southern Comfort' – coral bells
• Heuchera 'Steel City' – coral bells
• Heuchera
• Heuchera
• Heuchera 'Tnheueb' – Northern Exposure Black coral bells
• Heuchera 'Tnheuga' – Grande Amethyst coral bells
• Heuchera 'Tnheugb' – Grande Black coral bells
• Heuchera 'Tnheunel' – Northern Exposure Lime coral bells
• Heuchera 'Tnheunep' – Northern Exposure Purple coral bells
• Heuchera 'Tnheuner' – Northern Exposure Red coral bells
• Heuchera 'Tnheunes' – Northern Exposure Silver coral bells
• Heuchera tuckasegeensis 'Purple Belly'
• Heuchera villosa 'Autumn Bride' – coral bells
• Heuchera villosa 'Hulk'
• Hibiscus – mallow
• Hibiscus '21P03' – mallow
• Hibiscus 'Airbrush Effect' – mallow
• Hibiscus 'All Eyes on Me' – Summerific mallow
• Hibiscus 'Cherry Cheesecake' – Summerific rose mallow
• Hibiscus 'Cherry Choco Latte' – Summerific mallow
• Hibiscus coccineus – scarlet mallow
• Hibiscus coccineus f. albus – white-flowered scarlet rose mallow
• Hibiscus ferrugineus – rusty hibiscus
• Hibiscus 'Fireball' – mallow
• Hibiscus grandiflorus – swamp rose-mallow
• Hibiscus 'Happa Red' – Big Hit mallow
• Hibiscus 'Holly Springs' – mallow
• Hibiscus 'Jackie Grant' – mallow
• Hibiscus laevis – mallow
• Hibiscus 'Lohengrin' – mallow
• Hibiscus 'Marshmallow Moon' – rose mallow
• Hibiscus mutabilis – Confederate rose
• Hibiscus paramutabilis – everblooming Confederate rose
• Hibiscus 'Peppermint Flare' – mallow
• Hibiscus 'Rubrum' – mallow
• Hibiscus sinosyriacus 'Lilac Queen' – Chinese rose-of-Sharon
• Hibiscus cf. striatus – rosa del rio
• Hibiscus striatus subsp. lambertianus – striped rose mallow
• Hibiscus 'Summer Carnival' – mallow
• Hibiscus 'Summer Storm' – mallow
• Hibiscus syriacus 'America Irene Scott' – Sugar Tip variegated rose-of-Sharon
• Hibiscus syriacus 'Boule de Feu' – rose-of-Sharon
• Hibiscus syriacus 'Buddha Belly' – rose-of-Sharon
• Hibiscus syriacus 'Diana' – rose-of-Sharon
• Hibiscus syriacus 'DS03RS' – Raspberry Smoothie rose-of-Sharon
• Hibiscus syriacus 'Floru' – Violet Satin rose-of-Sharon
• Hibiscus syriacus 'Gandini Santiago' – Purple Pillar rose-of-Sharon
• Hibiscus syriacus 'Gandini van Aart' – White Pillar rose-of-Sharon
• Hibiscus syriacus 'Helene' – rose-of-Sharon
• Hibiscus syriacus 'Marina' – Blue Satin rose-of-Sharon
• Hibiscus syriacus 'Meehanii' – variegated rose-of-Sharon
• Hibiscus syriacus 'Minerva' – rose-of-Sharon
• Hibiscus syriacus 'Oiseau Bleu' – rose-of-Sharon
• Hibiscus syriacus (white leaves) – rose-of-Sharon
• Hibiscus – Tamus 171351E mallow
• Hibiscus 'TAMUS 171845-2W DL' – Plum Brandy mallow
• Hibiscus 'Valentine's Crush' – Summerific mallow
• Hieracium maculatum 'Leopard'
• ×Hippeasprekelia – hybrid amaryllis
• ×Hippeasprekelia 'Durga Pradhan' – hybrid amaryllis
• Hippeastrum – garden amaryllis
• Hippeastrum ×ackermanii
• Hippeastrum 'Acropolis' – garden amaryllis
• Hippeastrum 'Alfresco'
• Hippeastrum 'Aphrodite'
• Hippeastrum 'Apple Blossom' – garden amaryllis
• Hippeastrum 'Baby Star'
• Hippeastrum 'Barotse' – garden amaryllis
• Hippeastrum 'Cocktail' – garden amaryllis
• Hippeastrum 'Exotic Star'
• Hippeastrum 'Fanfare'
• Hippeastrum 'Hercules' – garden amaryllis
• Hippeastrum ×johnsonii – St. Joseph's lily
• Hippeastrum 'Lemon Star'
• Hippeastrum 'Milady' – garden amaryllis
• Hippeastrum 'Picotee' – garden amaryllis
• Hippeastrum 'Red Lion' – garden amaryllis
• Hippeastrum 'Safari' – garden amaryllis
• Hippeastrum 'Sun Dance' – garden amaryllis
• Hippeastrum 'Sweet Star'
• Hippeastrum 'Vera' – garden amaryllis
• Hippeastrum 'Voodoo' – garden amaryllis
• Hippeastrum 'Wedding Dance'
• Hippeastrum yungacense – Bolivian amaryllis
• Hosta – garden hosta
• Hosta 'Age of Gold' – hosta
• Hosta 'Autumn Frost' – hosta
• Hosta 'Blonde Ambition' – hosta
• Hosta 'Blue Cadet' – blue leaf hosta
• Hosta 'Blue Jay' – hosta
• Hosta 'Blue Mouse Ears' – hosta
• Hosta 'Branching Out' – hosta
• Hosta 'Carolina Sunshine' – variegated hosta
• Hosta 'Dancing Queen' – hosta
• Hosta 'Duchess' – variegated hosta
• Hosta 'Earth Angel' – hosta
• Hosta 'El Niño' – hosta
• Hosta 'Elvis Lives' – hosta
• Hosta 'Empress Wu' – hosta
• Hosta 'Fried Bananas' – hosta
• Hosta 'Gold Edger' – hosta
• Hosta 'Golden Tiara' – hosta
• Hosta 'Grand Prize' – hosta
• Hosta 'Grand Tiara' – variegated hosta
• Hosta 'Halcyon' – hosta
• Hosta 'Hans' – variegated hosta
• Hosta 'Hans Solo' – hosta
• Hosta 'Hudson Bay' – variegated hosta
• Hosta 'Hush Puppy' – hosta
• Hosta 'Jilan' – hosta
• Hosta 'June' – hosta
• Hosta kikutii var. caput-avis – bowing hosta
• Hosta kiyosumiensis – mountain hosta
• Hosta 'Komodo Dragon' – hosta
• Hosta longipes var. gracillima
• Hosta 'Loyalist' – hosta
• Hosta 'Luna Moth' – variegated hosta
• Hosta 'Mouse Trap' – hosta
• Hosta nakaiana – ornamental hairpin hosta
• Hosta 'Paradigm' – variegated hosta
• Hosta plantaginea – fragrant hosta
• Hosta 'Prairie Sky' – hosta
• Hosta 'Regal Splendor' – variegated hosta
• Hosta 'Rhino Hide' – hosta
• Hosta 'Royal Tiara' – hosta
• Hosta 'Rubies and Ruffles' – hosta
• Hosta 'Seducer' – variegated hosta
• Hosta sieboldiana – Siebold's hosta
• Hosta sieboldiana 'Frances Williams' – Siebold's hosta
• Hosta 'Silver Bullet' – hosta
• Hosta 'Stained Glass' – hosta
• Hosta 'Sugar and Spice' – hosta
• Hosta 'Tongue Lashing' – hosta
• Hosta tsushimensis – hosta
• Hosta tsushimensis var. tibae – Nagasaki hosta
• Hosta 'Vanilla Bean' – hosta
• Hosta ventricosa – blue hosta
• Hosta 'Victory' – hosta
• Hosta 'Wheee!' – variegated hosta
• Hosta 'Winsome' – hosta
• Hosta 'Yellow Splash Rim' – variegated hosta
• Hosta yingeri – Yinger's hosta
• Hovenia trichocarpa var. robusta
• ×Howardara 'Riley Kate' – hybrid rain lily
• Huodendron tibeticum – Tibetan jasmine
• Hyacinthoides ciliolata
• Hyacinthoides hispanica – Spanish bluebell
• Hyacinthoides hispanica 'Alba' – white Spanish bluebell
• Hyacinthoides hispanica 'City of Haarlem' – Spanish bluebell
• Hyacinthoides hispanica 'Dainty Maid' – pink Spanish bluebell
• Hyacinthoides hispanica 'Excelsior' – Spanish bluebell
• Hyacinthoides hispanica 'Queen of Pinks' – pink Spanish bluebell
• Hyacinthoides hispanica 'White City'
• Hyacinthoides non-scripta – English bluebells
• Hyacinthus 'Anastacia'
• Hyacinthus orientalis 'Apricot Passion'
• Hyacinthus orientalis 'Blue Festival' – garden hyacinth
• Hyacinthus orientalis 'Carnegie' – garden hyacinth
• Hyacinthus orientalis 'Gipsy Queen' – garden hyacinth
• Hyacinthus orientalis 'Pink Festival' – garden hyacinth
• Hyacinthus orientalis 'Pink Pearl'
• Hyacinthus orientalis 'White Festival' – garden hyacinth
• Hyacinthus orientalis 'Yellow Queen' – garden hyacinth
• Hyalis argentea
• Hydrangea
• Hydrangea 'After Midnight' – mophead hybrid hydrangea
• Hydrangea anomala subsp. petiolaris 'Early Light' – climbing hydrangea
• Hydrangea anomala subsp. petiolaris 'Miranda' – climbing hydrangea
• Hydrangea anomala (Yakushima fragrant)
• Hydrangea arborescens 'Annabelle' – mophead smooth hydrangea
• Hydrangea arborescens subsp. arborescens – smooth hydrangea
• Hydrangea arborescens 'Haas' Halo' – smooth hydrangea
• Hydrangea arborescens 'Mary Nell' – smooth hydrangea
• Hydrangea arborescens 'NCHA3' – Invincibelle Ruby smooth hydrangea
• Hydrangea arborescens 'NCHA4' – Incrediball Blush smooth hydrangea
• Hydrangea arborescens 'NCHA5' – Invincibelle Wee White smooth hydrangea
• Hydrangea arborescens 'NCHA6' – Invincibelle Garnetta smooth hydrangea
• Hydrangea arborescens 'NCHA7' – Invincibelle Mini Mauvette smooth hydrangea
• Hydrangea arborescens (yellow leaf, red flower) – smooth hydrangea
• Hydrangea fauriei
• Hydrangea hirta – nettle-leaved hydrangea
• Hydrangea hydrangeoides 'Moonlight' – Japanese climbing hydrangea
• Hydrangea hydrangeoides 'Strawberry Leaf' – Japanese climbing hydrangea
• Hydrangea involucrata 'Wim Rutten' – Blue Bunny compact bracted hydrangea
• Hydrangea involucrata 'Yokudanka'
• Hydrangea longipes
• Hydrangea longipes var. fulvescens
• Hydrangea luteovenosa 'Aureovariegata' – sweet hydrangea
• Hydrangea macrophylla – bigleaf hydrangea
• Hydrangea macrophylla 'Ayesha' – bigleaf hydrangea
• Hydrangea macrophylla 'Bailmacseven' – First Editions Eclipse bigleaf hydrangea
• Hydrangea macrophylla 'Big Daddy' – bigleaf hydrangea
• Hydrangea macrophylla 'Blaumeise' – bigleaf hydrangea
• Hydrangea macrophylla 'Blue Heaven' – Forever & Ever Blue Heaven bigleaf hydrangea
• Hydrangea macrophylla 'Blushing Bride' – bigleaf hydrangea
• Hydrangea macrophylla 'Cardinal Red' – bigleaf hydrangea
• Hydrangea macrophylla 'Dancing Snow' – bigleaf hydrangea
• Hydrangea macrophylla 'David Ramsey' – bigleaf hydrangea
• Hydrangea macrophylla 'Decatur Blue' – everblooming bigleaf hydrangea
• Hydrangea macrophylla 'Dooley' – mophead bigleaf hydrangea
• Hydrangea macrophylla 'Early Sensation' – Forever & Ever bigleaf hydrangea
• Hydrangea macrophylla 'Frau Reiko' – bigleaf hydrangea
• Hydrangea macrophylla 'Fuji Waterfall' – bigleaf hydrangea
• Hydrangea macrophylla 'Goliath' – mophead bigleaf hydrangea
• Hydrangea macrophylla 'Hatsushimo' – bigleaf hydrangea
• Hydrangea macrophylla 'Kompeito' – Double Delights Star Gazer bigleaf hydrangea
• Hydrangea macrophylla 'Lady in Red' – lacecap bigleaf hydrangea
• Hydrangea macrophylla 'Mariesii Perfecta' – bigleaf hydrangea
• Hydrangea macrophylla 'Mariesii Variegata' – variegated bigleaf hydrangea
• Hydrangea macrophylla ('Mariesii Variegata' new sport) – variegated bigleaf hydrangea
• Hydrangea macrophylla 'McKay' – Cherry Explosion bigleaf hydrangea
• Hydrangea macrophylla 'Möwe' – bigleaf hydrangea
• Hydrangea macrophylla 'Nickanyana' – bigleaf hydrangea
• Hydrangea macrophylla 'Oak Hill' – bigleaf hydrangea
• Hydrangea macrophylla 'PIIHM-I' – Twist-n-Shout bigleaf hydrangea
• Hydrangea macrophylla 'PIIHM-II' – Endless Summer BloomStruck bigleaf hydrangea
• Hydrangea macrophylla (red leaf, lilac) – bigleaf hydrangea
• Hydrangea macrophylla 'Yuki temari' – bigleaf hydrangea
• Hydrangea macrophylla 'Zorro' – bigleaf hydrangea
• Hydrangea megalocarpa – hydrangea vine
• Hydrangea paniculata 'Bombshell' – panicle hydrangea
• Hydrangea paniculata 'Brussels Lace' – panicle hydrangea
• Hydrangea paniculata (ex. 'Dharuma') – panicle hydrangea
• Hydrangea paniculata 'Ilvobo' – Bobo panicle hydrangea
• Hydrangea paniculata 'Limelight' – panicle hydrangea
• Hydrangea paniculata 'PIIHP-I' – Baby Lace panicle hydrangea
• Hydrangea paniculata 'Rendia' – Diamond Rouge panicle hydrangea
• Hydrangea paniculata 'Silver Dollar' – panicle hydrangea
• Hydrangea paniculata 'SMHPZIND' – Pillow Talk panicle hydrangea
• Hydrangea paniculata 'SMNHPRZEP' – Zinfin Doll panicle hydrangea
• Hydrangea paniculata 'Wim's Red' – Fire and Ice panicle hydrangea
• Hydrangea (pink form)
• Hydrangea platyarguta – tea of heaven
• Hydrangea platyarguta 'Kaeda' – tea of heaven
• Hydrangea quercifolia 'Alison' – oakleaf hydrangea
• Hydrangea quercifolia 'Brido' – Snowflake oakleaf hydrangea
• Hydrangea quercifolia 'Doughill' – Gatsby Star double oakleaf hydrangea
• Hydrangea quercifolia 'Emerald Lake' – oakleaf hydrangea
• Hydrangea quercifolia 'Flemygea' – Snow Queen oakleaf hydrangea
• Hydrangea quercifolia 'Ice Crystal' – oakleaf hydrangea
• Hydrangea quercifolia 'JoAnn' – Gatsby Pink oakleaf hydrangea
• Hydrangea quercifolia 'Little Honey' – golden oakleaf hydrangea
• Hydrangea quercifolia 'Lynn Lowrey' – oakleaf hydrangea
• Hydrangea quercifolia 'Munchkin' – oakleaf hydrangea
• Hydrangea quercifolia 'PIIHQ-I' – Jetstream compact oakleaf hydrangea
• Hydrangea quercifolia 'Ruby Slippers' – oakleaf hydrangea
• Hydrangea quercifolia 'Semmes Beauty' – oakleaf hydrangea
• Hydrangea quercifolia 'Sumatanga Star' – oakleaf hydrangea
• Hydrangea quercifolia 'Turkey Heaven' – oakleaf hydrangea
• Hydrangea aff. scandens – hydrangea
• Hydrangea seemannii – Seemann's hydrangea
• Hydrangea serrata – mountain hydrangea
• Hydrangea serrata 'Annie's Blue' – mountain hydrangea
• Hydrangea serrata 'Blue Billow' – mountain hydrangea
• Hydrangea serrata 'Grayswood' – mountain hydrangea
• Hydrangea serrata 'Hakusen' – mountain hydrangea
• Hydrangea serrata 'Intermedia' – mountain hydrangea
• Hydrangea serrata 'Kiyosumisawa' – mountain hydrangea
• Hydrangea serrata 'Kogane Suruge' – mountain hydrangea
• Hydrangea serrata 'Kokonoe-yama' – mountain hydrangea
• Hydrangea serrata 'Kurenai' – mountain hydrangea
• Hydrangea serrata 'Mountain Mojo' – mountain hydrangea
• Hydrangea serrata 'Ô Amacha Nishiki' – tea hydrangea
• Hydrangea serrata 'Shichidanka' – mountain hydrangea
• Hydrangea serrata 'SMNHSDD' – Tuff Stuff Ah-Ha mountain hydrangea
• Hydrangea serrata 'Woodlanders' – mountain hydrangea
• Hydrangea (sikokiana hybrid)
• Hydrangea aff. strigosa
• Hydrangea 'Summer Frost' – hybrid hydrangea
• Hydrangea viburnoides – evergreen climbing hydrangea
• Hydrangea
• Hydrangea xanthoneura var. setchuenensis – hanging bitter hydrangea
• Hylotelephium 'Back in Black' – tall sedum
• Hylotelephium 'Carl' – hybrid stonecrop
• Hylotelephium 'Cherry Truffle'
• Hylotelephium 'Firecracker' – SunSparkler stonecrop
• Hylotelephium 'Garbro' – Garnet Brocade stonecrop
• Hylotelephium 'Maestro' – hybrid stonecrop
• Hylotelephium 'Matrona' – hybrid stonecrop
• Hylotelephium 'Pure Joy' – hybrid stonecrop
• Hylotelephium spectabile '21P02' – showy stonecrop
• Hylotelephium spectabile 'Zi Juan' – Pink Sundae showy stonecrop
• Hylotelephium telephium
• Hylotelephium 'Thundercloud' – dwarf sedum
• Hylotelephium ussuriense 'Chuwangsan'
• Hymenocallis – spider lily
• Hymenocallis acutifolia
• Hymenocallis 'Advance'
• Hymenocallis caribaea 'Superstar'
• Hymenocallis choctawensis – Choctaw spiderlily
• Hymenocallis ×festalis
• Hymenocallis glauca – Oaxaca spider lily
• Hymenocallis (Guatemala form) – spider lily
• Hymenocallis harrisiana – St. Nicholas star
• Hymenocallis imperialis – Mexican spider lily
• Hymenocallis leavenworthii (Telos form) – spider lily
• Hymenocallis liriosme – Texas spiderlily
• Hymenocallis littoralis × liriosme – hybrid spider lily
• Hymenocallis puntagordensis
• Hymenocallis puntagordensis (Punta Gorda, FL form)
• Hymenocallis pygmaea 'Carolina Creeper' – dwarf spider lily
• Hymenocallis riparia – Mexican spider lily
• Hymenocallis cf. rotata (Lower Suwannee form) – streambank spiderlily
• Hymenocallis 'Sulphur Queen'
• Hymenocallis 'Tropical Giant' – spider lily
• Hypericum calycinum 'Crowthyp' – Fiesta St. John's-wort
• Hypericum cerastioides 'Silvana' – St. John's-wort
• Hypericum connatum – clasping St. John's wort
• Hypericum forrestii – Forrest St. John's-wort
• Hypericum ×inodorum 'Kolmades' – Magical Desire St. John's-wort
• Hypericum ×inodorum 'Kolmatri' – Magical Triumph St. John's-wort
• Hypericum latisepalum – St. John's-wort
• Hypericum lissophloeus – smoothbark St. John's-wort
• Hypericum lobocarpum – five-lobe St. John's-wort
• Hypericum nitidum 'Carolina Sunshine' – Carolina St. John's wort
• Hypericum oblongifolium – pendant St. John's-wort
• Hypericum prolificum – shrubby St. John's-wort
• Hypericum 'Red' – HyperBerries St. John's-wort
• Hypericum tetrapterum – St. John's-wort
• Hypoxis hemerocallidea – African star flower
• Hypoxis rooperi – Rooper's star-grass
• Hyssopus seravschanicus

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I

• Iberis sempervirens – candytuft
• Iberis sempervirens 'Snow White' – candytuft
• Iberis sempervirens 'Snowcone Forte' – candytuft
• Iberis sempervirens 'Snowdrift' – candytuft
• Iberis simplex – candytuft
• Ilex – holly
• Ilex 'Alabama Gold' – holly
• Ilex 'Apollo' – hybrid winterberry holly
• Ilex aquifolium 'Aurifodina' – variegated English holly
• Ilex ×attenuata – Topal holly
• Ilex ×attenuata 'Howard' – Topal holly
• Ilex ×attenuata 'Nasa' – dwarf Topal holly
• Ilex ×attenuata 'Pack's Weeping' – weeping Topal holly
• Ilex ×attenuata 'Sunny Foster' – Foster holly
• Ilex buergeri – Buerger holly
• Ilex 'Carolina Cardinal' – hybrid winterberry holly
• Ilex 'Carolina Cone' – holly
• Ilex 'Carolina Sentinel' – NCSU hybrid evergreen holly
• Ilex cassine var. angustifolia – narrow-leaf dahoon holly
• Ilex cassine 'Orton's Hybrid' – dahoon holly
• Ilex 'Cherry Bomb' – evergreen holly
• Ilex cornuta – Chinese holly
• Ilex cornuta 'D'Or' – Chinese holly
• Ilex cornuta (ex. 'Rotunda', gold leaf) – Chinese holly
• Ilex cornuta 'Greer' – Berries Jubilee Chinese holly
• Ilex cornuta 'Masashi's Gold' – Chinese holly
• Ilex cornuta 'O. Spring' – Chinese holly
• Ilex cornuta 'Sunrise' – Chinese holly
• Ilex cornuta ('Willowleaf' variegated) – Chinese holly
• Ilex crenata 'Adorned' – Japanese holly
• Ilex crenata 'Drops of Gold' – golden Japanese holly
• Ilex crenata 'Farrowone' – Sky Pointer upright Japanese holly
• Ilex crenata 'Golden Soft Touch' – Japanese holly
• Ilex crenata 'NCIC1' – Glow Pop Japanese holly
• Ilex crenata 'RutHol2' – Bullseye Japanese holly
• Ilex crenata 'RutHol3' – Jade Lance Japanese holly
• Ilex crenata 'Snowflake' – Japanese holly
• Ilex 'Dapat' – Miss Patricia evergreen holly
• Ilex decidua 'Midas' – possumhaw
• Ilex decidua (SFA No. 4) – possumhaw holly
• Ilex decidua 'Warren's Red' – possumhaw holly
• Ilex dimorphophylla – Okinawa holly
• Ilex dimorphophylla × I. cornuta – hybrid holly
• Ilex 'Dorothy Lawton' – Dodd hybrid evergreen holly
• Ilex 'HL10-90' – Christmas Jewel evergreen holly
• Ilex integra 'Green Shadow' – mochi tree
• Ilex integra × I. latifolia – hybrid holly
• Ilex integra 'Ogon' – mochi tree
• Ilex integra (variegated) – mochi tree
• Ilex (Jiangxi small leaves)
• Ilex ×koehneana 'Martha Berry' – Koehne holly
• Ilex 'Lady Spike' – holly
• Ilex latifolia – lusterleaf holly
• Ilex latifolia 'Gulino Gardens' – lusterleaf holly
• Ilex 'Mary Nell' – McDaniel hybrid evergreen holly
• Ilex maximowicziana
• Ilex micrococca – thin-leaf holly
• Ilex 'Mondo' – Little Rascal holly
• Ilex myrtifolia 'Duling's Variegated' – myrtle leaf holly
• Ilex 'Nellie R. Stevens' – holly
• Ilex ('Nellie R. Stevens' gold margin) – holly
• Ilex nipponica – holly
• Ilex opaca – American holly
• Ilex opaca 'Boiler Boy' – American holly
• Ilex opaca 'Clarendon Spreading' – compact American holly
• Ilex opaca 'Morgan Gold' – American holly
• Ilex opaca 'Rollover' – American holly
• Ilex opaca 'Royal Flush' – variegated American holly
• Ilex opaca 'Sundown' – American holly
• Ilex opaca 'William Hawkins' – narrowleaf American holly
• Ilex 'Orange You Pretty' – holly
• Ilex 'Patricia Varner' – Dodd hybrid evergreen holly
• Ilex aff. pedunculosa
• Ilex 'Philip Watson' – holly
• Ilex (pink flower clone 2)
• Ilex pubescens – downy holly
• Ilex purpurea – peach leaf holly
• Ilex 'Raritan Chief' – hybrid winterberry holly
• Ilex rotunda – round leaf holly
• Ilex rotunda (yellow fruit)
• Ilex 'Sadie Scudder' – variegated holly
• Ilex 'Scepter' – Kosar hybrid evergreen holly
• Ilex serrata – sawtooth holly
• Ilex 'Solar Flare' – holly
• Ilex aff. suaveolens
• Ilex suaveolens
• Ilex sugerokii subsp. longipedunculata – victorian holly
• Ilex 'Venus' – evergreen holly
• Ilex verticillata 'FARROWBPOP' – Berry Poppins winterberry holly
• Ilex verticillata 'FARROWMRP' – Mr. Poppins winterberry holly
• Ilex verticillata 'Golden Verboom' – yellow-berry winterberry holly
• Ilex verticillata 'NCIV1' – Little Goblin Red winterberry holly
• Ilex verticillata 'NCIV2' – Little Goblin Orange winterberry holly
• Ilex verticillata 'NCIV3' – Little Goblin Guy winterberry holly
• Ilex verticillata 'Red Sprite' – winterberry holly
• Ilex verticillata 'Scarlett O'Hara' – winterberry holly
• Ilex verticillata 'Winter Gold' – yellow-berry winterberry holly
• Ilex vomitoria 'Dare County' – orange-berry yaupon holly
• Ilex vomitoria 'Dodd's Cranberry' – yaupon holly
• Ilex vomitoria (dwarf gold sport) – yaupon holly
• Ilex vomitoria 'Gold Top' – yaupon holly
• Ilex vomitoria 'Lance's Weeper' – yaupon holly
• Ilex vomitoria 'Lowrey's Big Leaf' – yaupon holly
• Ilex vomitoria 'Mike James' – yaupon holly
• Ilex vomitoria 'Nana' – dwarf yaupon holly
• Ilex vomitoria 'Poole's Best' – yaupon holly
• Ilex vomitoria 'Saratoga Gold' – yellow-berry yaupon holly
• Ilex vomitoria 'Tricolor' – variegated yaupon holly
• Ilex vomitoria 'Wiggins' – yaupon holly
• Ilex vomitoria 'Yawkey' – yaupon holly
• Ilex ×wandoensis – Wando Island holly
• Ilex 'Whoa Nellie' – evergreen holly
• Illicium – anise
• Illicium anisatum – Japanese star anise
• Illicium anisatum 'Haku' – star anise
• Illicium anisatum 'Murasaki-no-sato' – Purple Glaze star anise
• Illicium anisatum (white chirifu) – star anise
• Illicium floridanum (AL variegated) – Florida anise
• Illicium floridanum f. album – white Florida anise
• Illicium floridanum f. album 'Semmes' – Florida anise
• Illicium floridanum 'Grey Ghost' – Florida anise
• Illicium floridanum 'Jo's Variegated' – variegated Florida anise
• Illicium floridanum 'Swamp Hobbit' – Florida anise
• Illicium henryi – Henry anise
• Illicium lanceolatum – Chinese anise
• Illicium macranthum – large-flowered anise tree
• Illicium merrillianum – anise shrub
• Illicium mexicanum 'Aztec Fire' – Mexican anise
• Illicium 'NCIH2' – Orion anise
• Illicium oligandrum – anise shrub
• Illicium parviflorum 'Florida Sunshine' – yellow anise
• Illicium parviflorum 'Forest Green' – yellow anise
• Illicium parviflorum (upright form)
• Illicium 'Ruby Stars' – anise
• Impatiens arguta – busy lizzie
• Impatiens omeiana – hardy impatiens
• Impatiens omeiana 'Ice Storm' – hardy impatiens
• Impatiens omeiana 'Silver Pink' – hardy impatiens
• Indigofera bungeana – false Indigo
• Indigofera decora f. alba – white Chinese indigo
• Indigofera dielsiana – Yunnan indigo
• Indigofera heterantha – Himalayan indigo
• Indigofera kirilowii 'Angyo Snow' – indigo
• Indigofera kirilowii 'Bernheim' – indigo
• Ipheion 'Alberto Castillo' – star flower
• Ipheion uniflorum – spring starflower
• Ipheion uniflorum 'Froyle Mill' – spring starflower
• Ipheion uniflorum 'Jessie' – spring starflower
• Ipheion uniflorum 'Rolf Fiedler' – spring starflower
• Ipheion uniflorum 'Tessa' – spring starflower
• Ipheion uniflorum 'White Star' – spring starflower
• Ipheion uniflorum 'Wisley Blue' – spring starflower
• Ipomoea bonariensis – tropical morning glory
• Iris – iris
• Iris 'Abbey Road'
• Iris 'Adopt Me' – intermediate bearded iris
• Iris 'Again and Again' – tall bearded reblooming iris
• Iris 'Alaska'
• Iris ×ampliflora 'Ming Treasure' – hybrid iris
• Iris 'Ann Chowning' – Louisiana iris
• Iris aphylla – stool iris
• Iris 'Baldwin'
• Iris 'Bayou Savage' – Louisiana iris
• Iris 'Bayou Short Stuff' – Louisiana iris
• Iris (bearded)
• Iris 'Berlin Network'
• Iris 'Bethany Claire'
• Iris 'Bewilderbeast'
• Iris 'Black Falls' – tall bearded iris
• Iris 'Black Gamecock' – Louisiana iris
• Iris 'Blue Magic'
• Iris 'Blue Review' – tall bearded reblooming iris
• Iris brevicaulis – zig zag iris
• Iris brevicaulis 'Mac's White'
• Iris 'Bronze Beauty'
• Iris bucharica – Bokhara iris
• Iris bungei – large bract iris
• Iris 'Cajun Sunrise' – Louisiana iris
• Iris (Cal-sib dwarf)
• Iris 'Carmen'
• Iris 'C'est Magnifique' – Louisiana iris
• Iris 'Change of Pace' – tall bearded iris
• Iris 'Clara Goula' – Louisiana iris
• Iris 'Clarence' – bearded iris
• Iris 'Clyde Redmond' – Louisiana iris
• Iris (crocea hybrid)
• Iris 'Crowned Heads' – tall bearded iris
• Iris 'Daughter of Stars' – tall bearded iris
• Iris delavayi – Delavay's iris
• Iris 'Dixie Deb' – Louisiana iris
• Iris 'Double Your Fun' – intermediate bearded iris
• Iris 'Dural White Butterfly' – Louisiana iris
• Iris 'Easter Tide' – louisiana iris
• Iris 'Emilie Dolge'
• Iris ensata 'Blue Spritz' – Japanese water iris
• Iris ensata 'Variegata' – Japanese water iris
• Iris 'Eolian' – Louisiana iris
• Iris 'Eye of the Tiger'
• Iris 'Fall Majesty' – tall bearded iris
• Iris 'Fall Spotlight' – reblooming tall bearded Iris
• Iris 'Finalist'
• Iris 'Flower Shower' – standard dwarf bearded iris
• Iris foetidissima
• Iris 'Freedom Song' – tall bearded iris
• Iris 'Frosted Olive'
• Iris fulva 'Wetora' – copper iris
• Iris ×germanica – German iris
• Iris ×germanica 'Rosalie Figge' – German iris
• Iris giganticaerulea 'Her Highness' – Louisiana iris
• Iris giganticaerulea (Nearwhite Boutte form)
• Iris 'Golden Beauty'
• Iris 'Golden Panther' – tall bearded iris
• Iris 'Grace Duhon' – Louisiana iris
• Iris graminea – plum-scented iris
• Iris 'Grape Reprise'
• Iris 'Harvest of Memories' – tall bearded iris
• Iris 'Hemstitched' – tall bearded iris
• Iris henryi
• Iris hexagona (recurved Hwy 98 form) – dixie iris
• Iris hexagona (St. Marks Midget form)
• Iris (Hickory Mound early form)
• Iris histrioides 'Finola' – reticulate iris
• Iris histrioides 'George' – reticulate iris
• Iris histrioides 'Polar Ice'
• Iris 'In Retrospect' – tall bearded reblooming iris
• Iris 'In Your Dreams' – tall bearded iris
• Iris 'Innocent Star'
• Iris 'James Dickenson'
• Iris 'Jane Troutman'
• Iris japonica 'Butterfly Dreams' – butterfly iris
• Iris japonica 'Porcelain Maiden' – butterfly iris
• Iris japonica 'Skirt Chaser' – evergreen butterfly iris
• Iris 'Jeri' – Louisiana iris
• Iris 'Kimboshi' – iris
• Iris 'King Creole' – Louisiana iris
• Iris 'Kissed by the Sun' – tall bearded iris
• Iris 'Kissie' – Louisiana iris
• Iris 'Kurokawa-Noh' – pseudata iris
• Iris laevigata 'Murasaki' – water iris
• Iris lazica
• Iris 'Lilla' – tall bearded iris
• Iris 'Lilla Alberta'
• Iris 'Lilting' – 'lilting' tall bearded iris
• Iris longipetala
• Iris 'Lumalite' – standard dwarf bearded iris
• Iris 'Making Eyes' – Iris 'Making Eyes'
• Iris 'Mallory Kay' – tall bearded iris
• Iris mandshurica
• Iris 'Margaret Hunter' – Louisiana iris
• Iris 'Marie Dolores' – Louisiana iris
• Iris 'Marris' – intermediate bearded iris
• Iris melitta
• Iris 'Melted Butter' – tall bearded iris
• Iris 'Midnight Oil' – tall bearded iris
• Iris aff. milesii – red flower iris
• Iris monnieri – iris of Rhodes
• Iris 'My Fantasy'
• Iris 'Mystic Beauty'
• Iris 'Nada' – butterfly iris
• Iris nelsonii – Nelson's iris
• Iris 'Noble Lady' – tall bearded iris
• Iris notha
• Iris 'Now See This' – tall bearded iris
• Iris odaesanensis – Mt. Odae Iris
• Iris 'Othello' – tall bearded iris
• Iris oxypetala
• Iris pallasii – Dalmatian iris
• Iris pallida 'Variegata'
• Iris 'Panther'
• Iris 'Pauline' – netted iris
• Iris (peach)
• Iris 'Phil Edinger'
• Iris 'Picasso'
• Iris 'Pretty Princess' – intermediate bearded iris
• Iris 'Professor Paul' – Louisiana iris
• Iris ×pseudata 'Roryu' – hybrid iris
• Iris ×pseudata 'Sakai-no-Ogon' – hybrid iris
• Iris ×pseudata 'Yarai' – hybrid iris
• Iris 'Pure Sapphire' – tall bearded iris
• Iris 'Purring Tiger' – Siberian iris
• Iris 'Raspberry Silk' – border bearded iris
• Iris 'Redelta'
• Iris [Reticulata Group] 'Alida' – netted iris
• Iris [Reticulata Group] 'Cantab' – netted iris
• Iris [Reticulata Group] 'Gordon' – netted iris
• Iris [Reticulata Group] 'Harmony' – netted iris
• Iris [Reticulata Group] 'J. S. Dijt' – netted iris
• Iris [Reticulata Group] 'Pixie' – netted iris
• Iris [Reticulata Group] 'Rhapsody' – netted iris
• Iris [Reticulata Group] 'Spring Time' – netted iris
• Iris [Reticulata Group] 'Sunshine'
• Iris 'Ride the Tiger' – tall bearded iris
• Iris (rossi hybrid)
• Iris rossii – iris
• Iris 'Roy's Repeater'
• Iris ruthenica – dwarf iris
• Iris savannarum f. albispiritis
• Iris 'Say Okay'
• Iris schachtii
• Iris 'Sea Wisp' – Louisiana iris
• Iris setosa – beachhead iris
• Iris setosa 'Hokkaido Purple' – beachhead iris
• Iris 'Shire'
• Iris sibirica 'Black Joker' – Siberian iris
• Iris sibirica 'Kaboom' – Siberian iris
• Iris sibirica 'Lights of Paris' – Siberian iris
• Iris sibirica 'Roaring Jelly' – Siberian iris
• Iris 'Silver Beauty'
• Iris 'Sinfonietta' – Louisiana iris
• Iris sintenisii – spuria iris
• Iris 'Sky and Sun' – tall bearded iris
• Iris 'Sky Beauty'
• Iris 'Slovak Prince' – tall bearded iris
• Iris 'Sparkling'
• Iris 'Sparkling Rose' – Siberian iris
• Iris 'Spiced Tiger' – tall bearded iris
• Iris spuria subsp. carthaliniae – spuria iris
• Iris 'Starlight Starbright' – Louisiana iris
• Iris 'Summer Olympics'
• Iris 'Surf's Up'
• Iris 'Symphony' – tall bearded iris
• Iris (TB purple)
• Iris (TB unknown color)
• Iris tectorum – roof iris
• Iris tectorum 'Alba' – roof iris
• Iris tectorum (ex. Jiuzhaigou) – roof iris
• Iris tectorum 'Snow on the Roof'
• Iris 'Tenderly'
• Iris 'Time to Shine' – dwarf bearded iris
• Iris tridentata – savannah iris
• Iris tridentata (blue violet)
• Iris tridentata (near white)
• Iris tridentata (red violet) – Savannah Iris
• Iris typhifolia
• Iris 'Unchained Melody' – tall bearded iris
• Iris unguicularis – winter flowering iris
• Iris unguicularis subsp. cretensis 'Kotsifou Gorge'
• Iris unguicularis 'Dazzling Eyes'
• Iris unguicularis 'Winter Echoes' – Algerian iris
• Iris 'Vapor' – tall bearded iris
• Iris versicolor – northern blue flag
• Iris versicolor 'Purple Flame' – northern blue flag
• Iris 'Victoria Falls' – tall bearded iris
• Iris 'Violet Classic'
• Iris virginica 'Carl Amason' – Southern blue flag
• Iris virginica 'Contraband Girl' – southern blue flag
• Iris virginica 'Wetpearl' – southern blue flag
• Iris 'Vision in Pink' – tall bearded iris
• Iris (wattii × japonica 'BD') – hybrid iris
• Iris 'Wetsurp' – Louisiana iris
• Iris 'Wonders Never Cease'
• Iris xiphium
• Iris 'Yasha' – pseudata iris
• Ismene (Riverside form) – Peruvian daffodil
• Isodon longitubus – trumpet spurflower
• Isopyrum biternatum – false rue anemone
• Itea (cf. coriacea) – sweetspire
• Itea japonica – Japanese sweetspire
• Itea oldhamii – sweetspire
• Itea omeiensis – sweetspire
• Itea virginica 'Bailteaone' – Love Child Virginia sweetspire
• Itea virginica 'Henry's Garnet' – Virginia sweetspire
• Itea virginica 'Japanese American' – Virginia sweetspire
• Itea virginica 'Longspire' – Virginia sweetspire
• Itea virginica 'Morton' – Scarlet Beauty Virginia sweetspire
• Itea virginica 'Shirley's Compact' – miniature Virginia sweetspire
• Itea virginica 'SMNIVMM' – Fizzy Mizzy Virginia sweetspire
• Ixia paniculata 'Eos'

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J

• Janusia guaranitica
• Jasione montana
• Jasminum – jasmine
• Jasminum beesianum – red jasmine
• Jasminum mesnyi 'Gold Tip' – primrose jasmine
• Jasminum nudiflorum 'Aureum' – golden winter jasmine
• Jasminum officinale 'Devon Cream' – jasmine
• Jasminum officinale 'Frojas' – Fiona Sunrise jasmine
• Juncus – rush
• Juncus (curly leaf) – corkscrew rush
• Juncus effusus f. spiralis 'Big Twister' – corkscrew rush
• Juncus inflexus 'Blue Arrows' – European meadow rush
• Juncus inflexus
• Juncus pallidus 'Javelin' – giant rush
• Juncus patens 'Carman's Gray' – spreading rush
• Juncus tenuis 'Blue Dart' – rush
• Juniperus barbadensis var. luceyana – Lucayan juniper
• Juniperus cedrus – Canary Islands juniper
• Juniperus chinensis 'Aurea' – Chinese juniper
• Juniperus chinensis 'Echiniformis' – Chinese juniper
• Juniperus chinensis 'Shimpaku Gold' – Chinese juniper
• Juniperus chinensis 'Shoosmith' – Chinese juniper
• Juniperus chinensis 'Sylvestris' – Chinese juniper
• Juniperus coahuilensis – redberry juniper
• Juniperus communis var. depressa 'Hitchcock' – Southern common juniper
• Juniperus communis 'Gold Cone' – common juniper
• Juniperus communis 'Gold Totem Pole' – common juniper
• Juniperus communis 'Lemon Spire' – common juniper
• Juniperus communis (Magowan form) – common juniper
• Juniperus deppeana (compact blue) – alligator juniper
• Juniperus foetidissima – stinking juniper
• Juniperus formosana – Formosan juniper
• Juniperus horizontalis 'Bar Harbor' – creeping juniper
• Juniperus horizontalis 'Blue Pygmy' – miniature creeping juniper
• Juniperus horizontalis 'Copper Harbor' – creeping juniper
• Juniperus horizontalis 'Gold Strike' – golden creeping juniper
• Juniperus horizontalis 'Golden Carpet' – golden creeping juniper
• Juniperus horizontalis 'Maiden Gold' – golden creeping juniper
• Juniperus horizontalis 'Mother Lode' – golden creeping juniper
• Juniperus horizontalis 'Pancake' – creeping juniper
• Juniperus horizontalis 'Planifolia' – creeping juniper
• Juniperus horizontalis 'Silver Sheen' – creeping juniper
• Juniperus monosperma – oneseed juniper
• Juniperus procumbens – Japanese garden juniper
• Juniperus procumbens 'California' – Japanese garden juniper
• Juniperus procumbens 'Greenmound' – Japanese garden juniper
• Juniperus rigida subsp. conferta 'Emerald Sea' – shore juniper
• Juniperus rigida subsp. conferta 'sPg-3-016' – Golden Pacific shore juniper
• Juniperus rigida subsp. conferta 'Sunsplash' – variegated shore juniper
• Juniperus rigida 'Hikari' – goldtip temple juniper
• Juniperus rigida (tight fastigiate cone) – temple juniper
• Juniperus scopulorum × J. horizontalis – creeping juniper
• Juniperus squamata 'Meyeri' – flaky juniper
• Juniperus virginiana 'Ascension' – eastern red cedar
• Juniperus virginiana 'Glauca Compacta' – eastern redcedar
• Juniperus virginiana (mounding form) – eastern red cedar
• Juniperus virginiana 'Regal' – eastern redcedar
• Juniperus virginiana (Scott Burrell's extreme narrow form) – eastern red cedar
• Juniperus virginiana 'Silver Spear' – eastern red cedar
• Juniperus virginiana (Wake Forest variegated) – eastern redcedar
• Justicia brandegeeana – shrimp plant
• Justicia carnea (dark leaved) – Brazilian plume

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K

• Kadsura coccinea – huge fruited kadsura vine
• Kadsura heteroclita – kadsura vine
• Kadsura japonica 'King Kong' – kadsura vine
• Kadsura japonica 'Kumagai' – kadsura
• Kadsura longipedunculata – Chinese kadsura
• Kalmia latifolia 'Croft Carpet' – mountain laurel
• Kalmia latifolia 'Sepulga Pink' – mountain laurel
• Kerria japonica 'Chiba Gold' – Japanese kerria
• Kerria japonica 'Fubuki Nishiki' – Japanese kerria
• Kerria japonica 'Geisha' – Japanese kerria
• Kerria japonica 'Honshu' – Japanese kerria
• Keteleeria davidiana
• Keteleeria davidiana var. davidiana
• Keteleeria davidiana var. formosana
• Kirengeshoma palmata (white flush) – yellow waxbells
• Kniphofia – red-hot poker
• Kniphofia albescens – white torch lily
• Kniphofia 'Backdraft' – Pyromania Collection red-hot poker
• Kniphofia 'Candlelight' – yellow red-hot poker
• Kniphofia 'Echo Mango' – yellow red-hot poker
• Kniphofia foliosa – red hot poker
• Kniphofia 'Gladness' – red-hot poker
• Kniphofia 'Gold Rush' – red-hot poker
• Kniphofia hirsuta – Fire Dance Dwarf Poker
• Kniphofia laxiflora – red hot poker
• Kniphofia northiae – Octopus Red Hot Poker
• Kniphofia 'Nose Job' – red-hot poker
• Kniphofia pauciflora
• Kniphofia 'Rocket Jr.'
• Kniphofia (Rockette Orange) – red-hot poker
• Kniphofia triangularis – dwarf red-hot poker
• Kniphofia tuckii – red hot poker
• Kniphofia uvaria 'KLEKN22193' – Glowstick red hot poker
• Kniphofia uvaria 'Lola' – red-hot poker
• Koelreuteria paniculata 'Beachmaster' – dwarf goldenrain tree
• Koelreuteria paniculata 'Fastigiata' – columnar goldenrain tree
• Koelreuteria paniculata 'Rose Lantern' – late-flowering goldenrain tree
• Kosteletzkya pentacarpos – coastal mallow

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L

• Lagerstroemia 'Cedar Red' – hybrid crepe myrtle
• Lagerstroemia 'Cherry Mocha' – dwarf crepe myrtle
• Lagerstroemia 'Chocolate Mocha' – Delta Jazz hybrid crepe myrtle
• Lagerstroemia 'Ebony Embers' – Black Diamond Red Hot crepe myrtle
• Lagerstroemia 'Ebony Flame' – Black Diamond Best Red crepe myrtle
• Lagerstroemia fauriei – Japanese crepe myrtle
• Lagerstroemia fauriei 'Fantasy' – Japanese crepe myrtle
• Lagerstroemia fauriei 'Townhouse' – Japanese crepe myrtle
• Lagerstroemia 'Frappe Pink' – dwarf crepe myrtle
• Lagerstroemia 'Gamad I' – Cherry Dazzle crepe myrtle
• Lagerstroemia 'Gamad II' – Raspberry Dazzle compact crepe myrtle
• Lagerstroemia 'Gamad III' – Snow Dazzle compact crepe myrtle
• Lagerstroemia 'Gamad VII' – Sweetheart Dazzle dwarf crepe myrtle
• Lagerstroemia guilinensis – Guangxi crepe-myrtle
• Lagerstroemia indica – crepe myrtle
• Lagerstroemia indica 'Congrabel' – Bellini Grape crepe myrtle
• Lagerstroemia indica 'Conlagras' – Bellini Raspberry crepe myrtle
• Lagerstroemia indica 'Delea' – Delta Moonlight crepe myrtle
• Lagerstroemia indica 'G2X133271' – Infinitini Magenta crepe myrtle
• Lagerstroemia indica 'G2X13377' – Infinitini White dwarf crepe myrtle
• Lagerstroemia indica 'LDC-2' – Emerald Empire Garnet Prince crepe myrtle
• Lagerstroemia indica 'LDC-7' – Emerald Empire series crepe myrtle
• Lagerstroemia indica 'Orchid Cascade' – ground cover crepe myrtle
• Lagerstroemia indica 'Red Filli' – miniature crepe myrtle
• Lagerstroemia indica 'Whit III' – Pink Velour crepe myrtle
• Lagerstroemia indica 'Whit IV' – Red Rocket red crepe myrtle
• Lagerstroemia indica 'Whit VII' – Siren Red crepe myrtle
• Lagerstroemia 'Jd827' – Early Bird Purple hybrid crepe myrtle
• Lagerstroemia 'Jd900' – Early Bird White early flowering crepe myrtle
• Lagerstroemia 'LDC-11' – Emerald Empire Precious Pink crepe myrtle
• Lagerstroemia 'LDC-20' – Emerald Empire Crystalline crepe myrtle
• Lagerstroemia 'Like a Latte' – Barista crepe myrtle
• Lagerstroemia limii – crepe myrtle
• Lagerstroemia 'Natchez' – crepe myrtle
• Lagerstroemia 'PIILAG-III' – Red Rooster crepe myrtle
• Lagerstroemia 'PIILAG-IX' – Sunset Magic compact crepe myrtle
• Lagerstroemia 'PIILAG-V' – Midnight Magic crepe myrtle
• Lagerstroemia 'PIILAG-VII' – Ruffled Red Magic crepe myrtle
• Lagerstroemia 'PIILAG-VIII' – Twilight Magic crepe myrtle
• Lagerstroemia (purple leaf) – crepe myrtle
• Lagerstroemia subcostata – white-barked crepe myrtle
• Lagerstroemia 'Sweet Macchiato' – Barista crepe myrtle
• Lagerstroemia 'White Cascade' – hybrid crepe myrtle
• Lamium maculatum 'White Nancy' – deadnettle
• Lantana camara 'Citrus Salad' – lantana
• Lantana camara 'Ham and Eggs' – lantana
• Lantana camara ('Ham and Eggs' orange sport) – lantana
• Lantana camara 'Star Landing' – lantana
• Lantana 'Chapel Hill Yellow' – lantana
• Lantana montevidensis
• Lantana 'Sunset Beach' – lantana
• Lantana trifolia – three-leaf lantana
• Laurus azorica – bay laurel
• Laurus nobilis – bay laurel
• Laurus nobilis (hardy form) – bay laurel
• Laurus nobilis × Umbellularia californica – bay laurel
• Lavandula 'Avonview' – Spanish lavender
• Lavandula (ex. 'Avonview')
• Lavandula ×intermedia 'Niko' – Phenomenal lavender
• Lavandula stoechas – Spanish lavender
• Lavandula stoechas – Castilliano 2.0 Lilac Spanish lavender
• Lavandula stoechas – Javelin Forte Deep Purple Spanish lavender
• Ledebouria cooperi – Cooper's false scilla
• Ledebouria 'Gary Hammer' – false scilla
• Leopoldia tenuiflora
• Lepechinia hastata – false salvia
• Lepisorus – ribbon fern
• Lepisorus bicolor – Sichuan ribbon fern
• Lepisorus bicolor (mucronate)
• Lepisorus bicolor (tall variegated)
• Leptodermis oblonga
• Leptospermum scoparium 'Kiwi' – tea tree
• Lespedeza buergeri – bush clover
• Lespedeza homoloba
• Lespedeza maximowiczii 'Niwata'
• Lespedeza thunbergii subsp. formosa – mountain bush-clover
• Lespedeza thunbergii 'Little Volcano' – bush-clover
• Lespedeza thunbergii 'Pink Cascade' – pink bush-clover
• Lespedeza thunbergii 'Spring Grove' – bush-clover
• Lespedeza thunbergii 'White Fountain' – white bush-clover
• Leucanthemum ×superbum 'Becky' – Shasta daisy
• Leucojum aestivum – summer snowflake
• Leucojum aestivum 'Gravetye Giant' – summer snowflake
• Leucophyllum candidum – violet silverleaf
• Leucophyllum frutescens 'Green Cloud' – Texas sage
• Leucophyllum langmaniae – Texas ranger
• Leucothoe 'Sparkle' – leucothoe
• Leycesteria formosa 'Jealousy' – Himalayan honeysuckle
• Leymus arenarius 'Blue Dune' – blue lyme grass
• Liatris 'Alba'
• Liatris microcephala 'White Sprite' – white gayfeather
• Liatris spicata – blazing star
• Libertia chilensis – New Zealand satin flower
• Ligularia 'Hey, Mr. Wilson' – ligularia
• Ligularia japonica 'Frosted Flecks' – Japanese ligularia
• Ligularia kaialpina
• Ligustrum delavayanum – Delavay's privet
• Ligustrum japonicum 'Green Meatball' – wax leaf privet
• Ligustrum japonicum 'Harmony Gardens' – wax leaf privet
• Ligustrum japonicum 'Little Moon' – dwarf wax leaf privet
• Ligustrum japonicum 'Silver Stars' – variegated Japanese privet
• Ligustrum 'NCLX1' – Golden Ticket sterile gold-leaved privet
• Ligustrum sinense 'Sunshine' – Chinese privet
• Ligustrum sinense 'Variegatum' – Chinese privet
• Ligustrum sinense 'Wimbei' – Chinese privet
• Ligustrum tschonoskii 'Little Thomas' – privet
• Lilium
• Lilium 'Anastasia' – hybrid lily
• Lilium 'Arabian Knight'
• Lilium 'Baferrari'
• Lilium bakerianum (white)
• Lilium 'Beverly Dreams'
• Lilium 'Black Beauty' – oriental lily
• Lilium 'Brasilia'
• Lilium callosum – Lily
• Lilium candidum – Madonna lily
• Lilium carniolicum
• Lilium 'Conca d'Or'
• Lilium 'Empoli'
• Lilium 'Forever Susan'
• Lilium formosanum – Formosa lily
• Lilium 'Fusion'
• Lilium hansonii
• Lilium henryi – Henry's lily
• Lilium 'Lady Alice'
• Lilium lancifolium 'Flore Pleno' – double tiger lily
• Lilium lankongense
• Lilium 'Leslie Woodriff' – oriental-trumpet lily
• Lilium leucanthum
• Lilium lijiangense
• Lilium 'Lotus Beauty'
• Lilium 'Miss Feya'
• Lilium 'Muscadet'
• Lilium 'Orange Marmalade'
• Lilium 'Orange Tycoon'
• Lilium 'Orania' – Orienpet Lily
• Lilium poilanei (DJHV 19603) – lily
• Lilium pumilum
• Lilium 'Purple Dream'
• Lilium 'Red Alert' – hybrid lily
• Lilium regale – regal lily
• Lilium 'Satisfaction' – hybrid lily
• Lilium 'Scheherazade' – oriental-trumpet lily
• Lilium 'Snow Storm'
• Lilium 'Sunny Morning' – lily
• Lilium 'Touching'
• Lilium 'Triumphator'
• Lilium 'Yelloween' – Orienpet lily
• Lindelofia longiflora
• Lindera angustifolia – narrowleaf spicebush
• Lindera benzoin – spicebush
• Lindera erythrocarpa – red-fruited spicebush
• Lindera fragrans – bamboo-leaf spicebush
• Lindera glauca – spicebush
• Lindera aff. glauca – silver spicebush
• Lindera praecox – Asian spicebush
• Lindera reflexa – mountain spicebush
• Lindera subcoriacea – bog spicebush
• Lindera umbellata 'Togarashi' – kuro-moji spicebush
• Linum lewisii – Lewis flax
• Liquidambar acalycina 'Burgundy Flush' – Chinese sweet gum
• Liquidambar 'NCSG-14'
• Liquidambar 'NCSG-20'
• Liquidambar styraciflua 'Clydesform' – Emerald Sentinel columnar sweet gum
• Liquidambar styraciflua 'Gum Ball' – globe sweet gum
• Liquidambar styraciflua 'Slender Silhouette' – columnar sweet gum
• Liriodendron chinense – Chinese tuliptree
• Liriodendron chinense 'J. C. Raulston' – Chinese tuliptree
• Liriodendron tulipifera 'Ardis' – tuliptree
• Liriope – lilyturf
• Liriope exiliflora – lilyturf
• Liriope exiliflora 'Silver Dragon' – lilyturf
• Liriope exiliflora 'Superba' – lilyturf
• Liriope gigantea – giant lilyturf
• Liriope gigantea 'Lynn Lowrey' – giant lilyturf
• Liriope graminifolia – lilyturf
• Liriope kansuensis – lily-turf
• Liriope longipedicellata 'Porcupine' – lilyturf
• Liriope minor 'Torafu' – striped lilyturf
• Liriope muscari – lilyturf
• Liriope muscari 'Bigun' – Cleopatra lilyturf
• Liriope muscari 'Blue Giant' – lilyturf
• Liriope muscari 'Exc 051' – Purple Explosion lilyturf
• Liriope muscari 'Gold Band' – lilyturf
• Liriope muscari 'Hawk's Feather' – lilyturf
• Liriope muscari 'Okina' – lilyturf
• Liriope muscari 'PeeDee Ingot' – lilyturf
• Liriope muscari 'Samona' – lilyturf
• Liriope muscari 'Sideswiped' – lilyturf
• Liriope muscari 'Snow White' – lilyturf
• Liriope muscari (yellow splash) – lilyturf
• Liriope platyphylla – lilyturf
• Liriope aff. platyphylla – lilyturf
• Liriope spicata – creeping lilyturf
• Liriope aff. spicata – creeping lilyturf
• Lithocarpus brevicaudatus – short-tailed leaf tanoak
• Lithocarpus edulis 'Starburst' – variegated Japanese tan-bark oak
• Lithocarpus glaber – smooth tan-bark oak
• Lithocarpus harlandii
• Lithocarpus henryi – Henry tan-bark oak
• Litsea auriculata
• Litsea japonica
• Lobelia angulata
• Lobelia ×speciosa 'PAS1302712' – Starship Blue cardinal flower
• Lomandra longifolia 'Katrinus Deluxe' – spiny-head mat rush
• Lomandra longifolia 'Roma13' – Platinum Beauty spiny-head mat rush
• Lomatia myricoides – river lomatia
• Lonicera ×americana 'Pam's Pink' – American honeysuckle
• Lonicera iberica – honeysuckle
• Lonicera nitida 'Briliame' – Ophelia box honeysuckle
• Lonicera nitida 'Briloni' – Edmee Gold box honeysuckle
• Lonicera nitida 'Golden Glow' – Thunderbolt box honeysuckle
• Lonicera periclymenum – honeysuckle
• Lonicera periclymenum 'Scentsation' – European honeysuckle
• Lonicera ×purpusii 'Winter Beauty' – winter honeysuckle
• Lonicera quinquelocularis – translucent honeysuckle
• Lonicera sempervirens (early blooming) – trumpet honeysuckle
• Lonicera sempervirens 'John Clayton' – trumpet honeysuckle
• Lonicera sempervirens 'Leo' – trumpet honeysuckle
• Lonicera similis var. delavayi – Delavay's honeysuckle
• Lonicera standishii – Standish's honeysuckle
• Lonicera standishii var. lancifolia – lance-flowered Standish's honeysuckle
• Lophanthus tibeticus – Tibetan lofant
• Lophospermum 'Magic Dragon'
• Loropetalum chinense 'Beni Hime' – Jazz Hands Mini Chinese fringe flower
• Loropetalum chinense (Dodd form) – Chinese fringe flower
• Loropetalum chinense 'Irodori' – Jazz Hands variegated Chinese fringe flower
• Loropetalum chinense 'NCI002' – Carolina Moonlight Chinese fringe flower
• Loropetalum chinense var. rubrum 'Bicolor' – Chinese fringe flower
• Loropetalum chinense var. rubrum 'Blush' – Chinese fringe flower
• Loropetalum chinense var. rubrum 'Daybreak's Flame' – Chinese fringe flower
• Loropetalum chinense var. rubrum 'Hines Purple Leaf' – Plum Delight Chinese fringe flower
• Loropetalum chinense var. rubrum 'Monraz' – Razzleberri Chinese fringe flower
• Loropetalum chinense var. rubrum 'Pipa's Red' – Chinese fringe flower
• Loropetalum chinense var. rubrum (Piroche form) – Chinese fringe flower
• Loropetalum chinense var. rubrum 'Ruby' – Chinese fringe flower
• Loropetalum chinense var. rubrum 'Sizzlin' Pink' – Chinese fringe flower
• Loropetalum chinense var. rubrum 'Suzanne' – Chinese fringe flower
• Loropetalum chinense var. rubrum (variegated) – Chinese fringe flower
• Loropetalum chinense var. rubrum 'Zhuzhou Fuchsia' – Chinese fringe flower
• Loropetalum chinense 'Shang-hi' – Purple Diamond Chinese fringe flower
• Loropetalum chinense 'Shang-lo' – Purple Pixie Chinese fringe flower
• Loropetalum chinense 'Shang-Red' – Red Diamond Chinese fringe flower
• Loropetalum chinense 'Shang-White' – Emerald Snow Chinese fringe flower
• Loropetalum chinense 'Shidare' – Chinese fringe flower
• Loropetalum chinense 'Snow Dance' – Chinese fringe flower
• Loropetalum chinense 'Tokyo Weeping' – Chinese fringe flower
• Lotus alpinus
• Lotus corniculatus 'Plenus' – bird's-foot trefoil
• Ludwigia maritima 'Life's a Beach'
• Luehea divaricata – horse whip tree
• Luma apiculata – Chilean myrtle
• Lunaria annua – moneyplant
• Lunaria annua (variegated form) – moneyplant
• Lychnis coronaria 'Blood Red' – rose campion
• Lycium barbarum 'Firecracker' – goji berry
• Lycoris – surprise lily
• Lycoris (17-242)
• Lycoris (17-244)
• Lycoris (17-245)
• Lycoris (17-250) – surprise lily
• Lycoris (17-251)
• Lycoris (17-252)
• Lycoris (17-255)
• Lycoris (17-260)
• Lycoris (17-83?)
• Lycoris 'Albi Pink'
• Lycoris albiflora – white surprise-lily
• Lycoris albiflora 'Dorman'
• Lycoris ×albiflora 'Phil's Gold'
• Lycoris albiflora 'Summer Passion' – summer passion surprise lily
• Lycoris anhuiensis
• Lycoris aurea – hurricane lily
• Lycoris chinensis – golden surprise-lily
• Lycoris chinensis × L. sprengeri
• Lycoris ×elsiae – salmon surprise-lily
• Lycoris incarnata – candy-cane surprise-lily
• Lycoris longituba var. longituba – long-tube surprise-lily
• Lycoris radiata – spider lily
• Lycoris radiata var. pumila 'Fourth of July' – spider lily
• Lycoris radiata var. radiata – spider lily
• Lycoris radiata var. radiata 'Modern Japanese' – spider lily
• Lycoris ×rosea – surprise lily
• Lycoris ×rosea 'Magenta Magic' – surprise lily
• Lycoris ×rosea 'Mini Me' – surprise lily
• Lycoris ×rosea 'Satsuma Hiryu'
• Lycoris sprengeri – tie-dye surprise-lily
• Lycoris squamigera – surprise lily
• Lycoris straminea – staw surprise-lily
• Lycoris straminea (pink sport)
• Lycoris ×straminea 'Strawberry Lemonade'
• Lycoris traubii
• Lysimachia alfredii 'Night Light' – moneywort
• Lysimachia clethroides 'Heronswood Gold' – gooseneck
• Lysimachia congestiflora 'Persian Chocolate' – golden globes
• Lysimachia minoricensis – Loosestrife of Minorca
• Lysimachia paridiformis var. stenophylla – Sichuan loosestrife
• Lysimachia paridiformis var. stenophylla 'Jens Nilson Giant' – Sichuan loosestrife
• Lysionotus petelotii (purple back) – lipstick plant
• Lysionotus wilsonii

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M

• Maackia tenuifolia – maackia
• Machilus thunbergii – Japanese bay tree
• Magnolia – hybrid Magnolia
• Magnolia acuminata subsp. subcordata 'Ellen' – yellow cucumber tree
• Magnolia amabilis
• Magnolia 'Anticipation' – Kehr hybrid magnolia
• Magnolia ashei – Ashe's magnolia
• Magnolia 'Brass Monkey' – evergreen magnolia
• Magnolia ×brooklynensis 'Evamaria' – deciduous magnolia
• Magnolia ×brooklynensis 'Woodsman' – Brooklyn magnolia
• Magnolia 'Burgundy Spire' – magnolia
• Magnolia 'Canary Charm'
• Magnolia cavaleriei – evergreen magnolia
• Magnolia cavaleriei var. platypetala – broad petal michelia
• Magnolia changhungtana × M. kwangtungensis – hybrid evergreen magnolia
• Magnolia changhungtana × (sapaensis × insignis) – hybrid magnolia
• Magnolia chapensis
• Magnolia compressa – evergreen magnolia
• Magnolia 'Coral Lake' – Leach hybrid magnolia
• Magnolia cylindrica – Yellow Mountain magnolia
• Magnolia 'Daybreak' – Kehr hybrid magnolia
• Magnolia delavayi (pink flower form) – Father Delavay's evergreen magnolia
• Magnolia denudata 'Forrest's Pink' – pink Yulan magnolia
• Magnolia denudata var. glabrata
• Magnolia elegantifolia × M. figo 'Twiggy' – hybrid magnolia
• Magnolia 'Elizabeth' – yellow magnolia
• Magnolia ernestii – yellow lily-tree
• Magnolia ernestii (Ogisu form)
• Magnolia ernestii subsp. szechuanica – Sichuan yellow lily tree
• Magnolia 'Eskimo' – Kehr hybrid magnolia
• Magnolia 'Eternal Spring' – evergreen magnolia
• Magnolia 'Fancy Dude'
• Magnolia figo var. crassipes × (M. foveolata × M. laevifolia)
• Magnolia figo 'Hagiwara Everblooming' – banana shrub
• Magnolia figo 'Stellar Ruby' – banana shrub
• Magnolia figo 'Stubbs Purple' – banana shrub
• Magnolia ×foggii 'Picotee' – hybrid magnolia
• Magnolia fordiana – tree lotus
• Magnolia foveolata (golden form)
• Magnolia 'Freeman' – hybrid magnolia
• Magnolia 'Galaxy' – U.S. National Arboretum hybrid magnolia
• Magnolia 'Goldfinch' – hybrid magnolia
• Magnolia 'Gorgeous' – deciduous magnolia
• Magnolia grandiflora 'Baby Doll' – southern magnolia
• Magnolia grandiflora 'Emerald Spire' – southern magnolia
• Magnolia grandiflora 'Ferruginea' – southern magnolia
• Magnolia grandiflora 'Goliath' – southern magnolia
• Magnolia grandiflora 'Hasse' – upright southern magnolia
• Magnolia grandiflora 'Kay Parris' – southern magnolia
• Magnolia grandiflora 'Leanne' – southern magnolia
• Magnolia grandiflora 'Little Gem' – southern magnolia
• Magnolia grandiflora 'Poconos' – southern magnolia
• Magnolia grandiflora 'Pygmaea' – southern magnolia
• Magnolia grandiflora 'Silver Savage' – southern magnolia
• Magnolia grandiflora 'Southern Charm' – Teddy Bear southern magnolia
• Magnolia grandiflora 'Southern Pride' – southern magnolia
• Magnolia grandiflora 'STRgra' × M. grandiflora 'Kay Parris' – evergreen magnolia
• Magnolia grandiflora 'TMGH' – Alta columnar southern magnolia
• Magnolia grandiflora (variegated form) – variegated southern magnolia
• Magnolia grandiflora 'Victoria' – southern magnolia
• Magnolia 'Gulf Stream'
• Magnolia (hybrid No. 3)
• Magnolia insignis – red lotus tree
• Magnolia 'Iolanthe' – Jury hybrid magnolia
• Magnolia 'Jon Jon' – Gresham hybrid magnolia
• Magnolia 'Judy Zuk' – hybrid magnolia
• Magnolia 'Katie-O Early' – hybrid magnolia
• Magnolia 'KLMWW' – Jazzy Jane deciduous magnolia
• Magnolia kobus 'Kimitsu Hime' – kobus magnolia
• Magnolia kwangtungensis – Chinese manglietia
• Magnolia laevifolia – shrubby michelia
• Magnolia laevifolia 'Gail's Favourite' – shrubby michelia
• Magnolia laevifolia 'Michelle' – shrubby michelia
• Magnolia laevifolia 'Snowbird' – shrubby michelia
• Magnolia 'Legend' – Leach hybrid magnolia
• Magnolia liliiflora 'Minnie Mouse' – lily magnolia
• Magnolia 'Little Sue'
• Magnolia ×loebneri 'Ballerina'
• Magnolia ×loebneri 'Green Mist'
• Magnolia ×loebneri 'Leonard Messel'
• Magnolia ×loebneri 'Merrill'
• Magnolia ×loebneri 'Neil McEachern'
• Magnolia ×loebneri 'Willowwood'
• Magnolia 'Lois' – hybrid magnolia
• Magnolia lotungensis – eastern joy lotus tree
• Magnolia ('Lucky' × maudiae)
• Magnolia (M. foveloata × M. laevifolia) × M. figo var. crassipes
• Magnolia (M. foveolata × M. laevifolia) (Clone M) × M. figo var. crassipes
• Magnolia (M. yuyuanensis × ?) – hybrid magnolia
• Magnolia macclurei – evergreen magnolia
• Magnolia macrophylla – bigleaf magnolia
• Magnolia 'Maryland' – Freeman hybrid magnolia
• Magnolia maudiae – evergreen magnolia
• Magnolia (maudiae × 'Lucky')
• Magnolia 'Melissa Parris' × M. insignis 'Anita Figlar'
• Magnolia 'MICjur01' – Fairy Magnolia Blush hybrid magnolia
• Magnolia 'Nimbus' – deciduous magnolia
• Magnolia obovata 'Lydia'
• Magnolia 'Peppermint Stick' – Gresham hybrid magnolia
• Magnolia 'Pink Delight' – Ledvina hybrid magnolia
• Magnolia 'Pink Goblet' – Gresham hybrid magnolia
• Magnolia 'Pristine' – McDaniel hybrid magnolia
• Magnolia 'Purple Star Power' – deciduous magnolia
• Magnolia 'Rose Marie' × M. 'Genie' – hybrid magnolia
• Magnolia 'Rose Marie' × M. 'Ian's Red' – magnolia
• Magnolia salicifolia 'Miss Jack' – anise magnolia
• Magnolia sapaensis × M. conifera
• Magnolia sapaensis × M. conifera var. chingii – hybrid evergreen magnolia
• Magnolia 'Serendipity' – evergreen magnolia
• Magnolia (Shanghai/Liu hybrid)
• Magnolia sieboldii 'Colossus' – Oyama magnolia
• Magnolia sieboldii 'Colossus' × M. grandiflora 'Kay Parris' – hybrid magnolia
• Magnolia sieboldii 'Colossus' × M. insignis – hybrid magnolia
• Magnolia 'Silk Road' × M. insignis – hybrid Magnolia
• Magnolia ×soulangeana 'Lilliputian' – saucer magnolia
• Magnolia ×soulangeana 'Pickard's Opal' – saucer magnolia
• Magnolia ×soulangeana 'Picture' – saucer magnolia
• Magnolia ×soulangeana 'Speciosa' – saucer magnolia
• Magnolia ×soulangeana 'Sundew' – saucer magnolia
• Magnolia ×soulangeana 'Verbanica' – saucer magnolia
• Magnolia 'Spartan Spirit' – magnolia
• Magnolia 'Spectrum' – U.S. National Arboretum hybrid magnolia
• Magnolia sprengeri – Sprenger magnolia
• Magnolia 'Stellar Acclaim' – Kehr hybrid magnolia
• Magnolia stellata – star magnolia
• Magnolia stellata 'Chrysanthemumiflora' – many-petalled star magnolia
• Magnolia stellata 'Pickard's Stardust' – star magnolia
• Magnolia stellata 'Scented Silver' – star magnolia
• Magnolia stellata 'Waterlily' – many-petalled star magnolia
• Magnolia 'Sun Ray' – Kehr hybrid magnolia
• Magnolia 'Sun Spire' – Kehr hybrid magnolia
• Magnolia 'Sunsation' – Kehr hybrid magnolia
• Magnolia tamaulipana
• Magnolia virginiana – sweet bay
• Magnolia virginiana var. australis 'Coosa' – littleleaf sweet bay magnolia
• Magnolia virginiana var. australis 'Green Shadow' – sweet bay magnolia
• Magnolia virginiana var. australis 'Jim Wilson' – Moonglow sweet bay magnolia
• Magnolia virginiana var. australis (Louisiana form) – sweet bay magnolia
• Magnolia virginiana var. australis 'Perry Paige' – Sweet Thing dwarf sweet bay magnolia
• Magnolia virginiana (Dodd small leaf form) – sweet bay magnolia
• Magnolia virginiana × M. insignis – hybrid magnolia
• Magnolia virginiana 'Mt. Pulaski' – sweetbay magnolia
• Magnolia virginiana (SCC Texas/Louisiana form) × M. grandiflora 'Kay Parris' – hybrid magnolia
• Magnolia virginiana 'Silver Mist' – sweet bay magnolia
• Magnolia 'Wada's Memory' – deciduous magnolia
• Magnolia 'Winelight' – Gresham hybrid magnolia
• Magnolia xinganensis – Xingan magnolia
• Magnolia 'Yellow Fever' – deciduous magnolia
• Magnolia 'Yellow Lantern' – yellow magnolia
• Magnolia yuyuanensis × M. insignis
• Magnolia zenii – Zen magnolia
• Mahonia – leatherleaf mahonia
• Mahonia 'Arthur Menzies' – leatherleaf mahonia
• Mahonia bealei – leatherleaf mahonia
• Mahonia bodinieri – Bodinier's grape holly
• Mahonia duclouxiana
• Mahonia ×emeiensis (Ogisu) – Mt Emei mahonia
• Mahonia eurybracteata – grape holly
• Mahonia eurybracteata 'Cistus Silvers' – grape holly
• Mahonia eurybracteata subsp. ganpinensis – grape holly
• Mahonia eurybracteata subsp. ganpinensis 'Soft Caress' – grape holly
• Mahonia eurybracteata 'Narihira' – grape holly
• Mahonia (ex. bodinieri) – leatherleaf mahonia
• Mahonia fargesii – Farges' Mahonia
• Mahonia cf. fargesii – Farges' Mahonia
• Mahonia fortunei – Fortune's Mahonia
• Mahonia fremontii – Fremont's mahonia
• Mahonia 'Golden Cascade' – leatherleaf mahonia
• Mahonia gracilipes – Chinese mahonia
• Mahonia gracilis – Mexican barberry
• Mahonia haematocarpa – algerita
• Mahonia ilicina – grape holly
• Mahonia japonica – grape-holly
• Mahonia japonica 'Hivernant' – grape-holly
• Mahonia lanceolata (ex. 'El Cielo') – Mexican grape holly
• Mahonia leveilleana – Léveillé's mahonia
• Mahonia ×lindsayae 'Cantab' – fragrant mahonia
• Mahonia 'Marvel' – leatherleaf mahonia
• Mahonia 'McCracken's Seedling' – leatherleaf mahonia
• Mahonia ×media 'Buckland' – Oregon grape
• Mahonia ×media 'Charity' – Oregon grape
• Mahonia ×media 'Lionel Fortescue' – Oregon grape
• Mahonia ×media 'Underway' – Oregon grape
• Mahonia ×media 'Winter Sun' – Oregon grape
• Mahonia napaulensis 'Maharajah' – Nepalese Mahonia
• Mahonia 'NCMH1' – Good Vibes / Funky Flow leatherleaf mahonia
• Mahonia 'NCMH2' – Groovy Glow leatherleaf mahonia
• Mahonia nitens – Chinese mahonia
• Mahonia oiwakensis – Chinese mahonia
• Mahonia 'Pan Demic' – leatherleaf mahonia
• Mahonia shenii
• Mahonia (shenii hybrid)
• Mahonia 'Skylark' – leatherleaf mahonia
• Mahonia 'sPg-3-071' – Beijing Beauty leatherleaf mahonia
• Mahonia tikushiensis – Japanese mahonia
• Mahonia trifoliolata – agarita
• Mahonia (Yucca Do hybrids) – leatherleaf mahonia
• Maianthemum japonicum 'Suikou'
• Maianthemum stellatum 'Blue Dune' – false lily of the valley
• Maihuenia poeppigii – Maihuén
• Malus 'JFS KW139MX' – Ruby Dayze crabapple
• Malus 'JFS KW213MX' – Raspberry Spear upright crabapple
• Malus 'JFS KW214MX' – Ivory Spear crabapple
• Malus 'JFS KW218MX' – Snow Crystal crabapple
• Malus 'JFS-KW207' – Sparkling Sprite dwarf crabapple
• Malus micromalus – Kaido crab apple
• Malus 'Royal Beauty' – crabapple
• Malvaviscus arboreus var. drummondii – Turk's cap
• Malvaviscus arboreus var. drummondii 'Big Momma' – Drummond's wax mallow
• Malvaviscus arboreus var. drummondii 'Pam Puryear' – Turk's cap
• Malvaviscus arboreus var. drummondii (pink) – pink turk's cap
• Mammillaria heyderi var. nova
• Mandevilla laxa – Chilean jasmine
• Manettia cordifolia – firecracker vine
• Manettia cordifolia 'John Elsley' – firecracker vine
• Manfreda – deciduous agave
• Manfreda 'Helen Wynans' – deciduous agave
• Manfreda maculosa – spice-lily
• Manfreda undulata 'Chocolate Chips' – deciduous agave
• Manfreda variegata (Tamazunchale site) – deciduous agave
• ×Mangave 'Catch a Wave' – mangave
• ×Mangave 'Ink Blot'
• ×Mangave 'Kaleidoscope'
• ×Mangave 'Mission to Mars' – mangave
• ×Mangave 'My Dog Spot'
• ×Mangave 'Painted Desert'
• ×Mangave 'Purple People Eater'
• ×Mangave 'Queen for a Day' – mangave
• ×Mangave 'Shadow Waltz'
• ×Mangave 'Silver Fox' – mangave
• ×Mangave 'Snow Leopard' – mangave
• ×Mangave 'Whale Tale' – mangave
• Marshallia caespitosa var. signata
• Mazus reptans – creeping mazus
• Mazus reptans 'Albus' – white creeping mazus
• Melia azedarach 'Jade Snowflake' – Chinaberry tree
• Melia toosendan – Chinaberry
• Meliosma oldhamii – Oldham's meliosma
• Meliosma parviflora – small flowered melliosma
• Melliodendron xylocarpum 'Momoka' – Chinese parasol storax
• Mespilus canescens – Stern's medlar
• Metapanax davidii – David false-ginseng
• Metapanax delavayi
• Metapanax delavayi 'Stout'
• Metasequoia glyptostroboides – dawn redwood
• Metasequoia glyptostroboides 'Hamlet's Broom' – dawn redwood
• Metasequoia glyptostroboides 'Miss Grace' – dawn redwood
• Metasequoia glyptostroboides 'Schirrmann's Nordlicht' – dwarf dawn redwood
• Metasequoia glyptostroboides 'Sheridan Spire' – dawn redwood
• Metasequoia glyptostroboides 'Silhouette' – variegated dawn redwood
• Metasequoia glyptostroboides 'WAH-08AG' – Amber Glow dawn redwood
• Microchirita micromusa
• Microlepia strigosa f. crispa 'Shishi' – lion's mane fern
• Microlepia strigosa 'MacFaddeniae' – rigid lace fern
• Millettia pulchra – summer wisteria
• Mirabilis jalapa 'Baywatch' – four o'clock
• Mirabilis longiflora – sweet four o'clock
• Miscanthus floridulus – giant maiden grass
• Miscanthus 'NCMS1' – My Fair Maiden maiden grass
• Miscanthus sacchariflorus 'Gotemba Gold' – Amur silvergrass
• Miscanthus sinensis 'Adagio' – maiden grass
• Miscanthus sinensis 'Bandwidth' – maiden grass
• Miscanthus sinensis 'Strictus' – maiden grass
• Miscanthus transmorrisonensis – maiden grass
• Miyamayomena koraiensis – Korean starwort
• Miyamayomena savatieri 'Edo Murasaki' – Edo Muraski Japanese aster
• Molinia caerulea subsp. arundinacea 'Skyracer' – purple moor grass
• Monarda 'Bessie Bryant' – hybrid bee balm
• Monarda bradburyana – Bardbury's bee balm
• Monarda 'Fireball' – dwarf red beebalm
• Monarda fistulosa – bee balm
• Monarda fistulosa × M. bartlettii 'Peter's Purple' – Peter's purple bee balm
• Monarda 'Purple Rooster'
• Monardella villosa
• Monnina cuneata
• Moraea collina – Cape tulip
• Moraea polystachya – butterfly iris
• Morella cerifera 'Blue Candles' – southern wax myrtle
• Morella cerifera 'Soft Cloud' – dwarf southern wax myrtle
• Morella cerifera 'Soleil' – golden southern wax myrtle
• Morella cerifera 'Strawberry Shortcake' – southern wax myrtle
• Morella cerifera 'Waccamaw Pancake' – wax myrtle
• Morella pusilla – dwarf southern wax myrtle
• Morella pusilla (Liberty Co, FL) – dwarf southern wax myrtle
• Morina longifolia
• Morus alba 'Ho-o' – royal white mulberry
• Muehlenbeckia astonii – shrubby tororaro
• Muehlenbeckia axillaris 'Tricolor' – creeping wire vine
• Muhlenbergia dumosa 'Patagonia'
• Muhlenbergia emersleyi – bullgrass
• Muhlenbergia lindheimeri – big muhly grass
• Muhlenbergia 'Pink Flamingos' – muhly grass
• Muhlenbergia reverchonii – seep muhly
• Muhlenbergia sericea – muhly grass
• Musa balbisiana – plantain
• Musa basjoo – textile banana
• Musa 'Helen's Hybrid' – banana
• Musa 'Longleaf Garnet' – ornamental banana
• Musa mannii
• Musa ornata × velutina
• Musa 'Picasso' – hybrid banana
• Musa sikkimensis – Sikkim banana
• Musa velutina – velvet pink banana
• Muscari
• Muscari armeniacum 'Blue Spike'
• Muscari armeniacum 'Christmas Pearl' – common grape hyacinth
• Muscari armeniacum 'Fantasy Creation'
• Muscari armeniacum 'Saffier'
• Muscari armeniacum 'Siberian Tiger'
• Muscari armeniacum 'Valerie Finnis'
• Muscari armeniacum 'Venus'
• Muscari aucheri 'Blue Magic' – blue magic grape hyacinth
• Muscari aucheri 'Dark Eyes' – Aucher-Eloy grape hyacinth
• Muscari aucheri 'Mount Hood' – Aucher-Eloy grape hyacinth
• Muscari macrocarpum 'Golden Fragrance' – yellow grape hyacinths
• Muscari muscarimi – musk grape hyacinth
• Muscari neglectum
• Muscari neglectum 'Baby's Breath'
• Muscari 'Peppermint'
• Muscari 'Sky Blue'
• Musella lasiocarpa – golden lotus banana
• Musella lasiocarpa var. rubribracteata
• Myrcianthes fragrans – twinberry
• Myrcianthes fragrans 'Cape Canaveral' – twinberry
• Myrcianthes pungens – twinberry
• Myriopteris lanosa – hairy lip fern
• Myriopteris yavapensis – graceful lip fern
• Myrospermum sousanum – arroyo sweetwood
• Myrsine africana – African boxwood
• Myrtus communis 'Andy's Hardy' – myrtle
• Myrtus communis 'Little Elizabeth' – myrtle

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N

• Nageia nagi – nagi
• Nageia nagi 'Blue Gator' – nagi
• Nandina domestica – heavenly bamboo
• Nandina domestica 'Aka' – Blush Pink dwarf heavenly bamboo
• Nandina domestica (aphyllous) – heavenly bamboo
• Nandina domestica 'Aurea' – yellow-berry heavenly bamboo
• Nandina domestica 'Chidori' – threadleaf heavenly bamboo
• Nandina domestica 'Compacta' – dwarf heavenly bamboo
• Nandina domestica (dwarf upright) – dwarf heavenly bamboo
• Nandina domestica 'Enshu' – heavenly bamboo
• Nandina domestica 'Firepower' – dwarf heavenly bamboo
• Nandina domestica 'Greray' – Sunray compact nandina
• Nandina domestica 'Gulf Stream' – compact heavenly bamboo
• Nandina domestica 'Harbour Dwarf' – dwarf heavenly bamboo
• Nandina domestica 'Jaytee' – Harbor Belle dwarf heavenly bamboo
• Nandina domestica 'Kurijuse' – threadleaf nandina
• Nandina domestica 'Lemon Lime' – heavenly bamboo
• Nandina domestica 'Leucocarpa' – yellow-berried heavenly bamboo
• Nandina domestica 'Monfar' – Sienna Sunrise compact heavenly bamboo
• Nandina domestica 'Moon Bay' – compact heavenly bamboo
• Nandina domestica 'Murasaki' – Flirt dwarf heavenly bamboo
• Nandina domestica 'Nana Purpurea' – dwarf heavenly bamboo
• Nandina domestica 'Okame' – heavenly bamboo
• Nandina domestica 'Ori Zuru' – contorted leaf heavenly bamboo
• Nandina domestica 'Otafuku' – variegated heavenly bamboo
• Nandina domestica 'Pygmaea' – dwarf heavenly bamboo
• Nandina domestica (Raulston hybrid No. 2) – narrowleaf heavenly bamboo
• Nandina domestica 'Royal Princess' – heavenly bamboo
• Nandina domestica 'San Gabriel' – threadleaf heavenly bamboo
• Nandina domestica 'Seika' – Obsession compact heavenly bamboo
• Nandina domestica 'Senbazuru' – threadleaf heavenly bamboo
• Nandina domestica 'Shiromi Orizuru' – heavenly bamboo
• Nandina domestica 'Soga Ikada' – heavenly bamboo
• Nandina domestica 'Southern Lace' – narrowleaf heavenly bamboo
• Nandina domestica 'Taki-no-Kawa' – heavenly bamboo
• Nandina domestica 'Tancho Zuru' – heavenly bamboo
• Nandina domestica 'Towne and Country' – heavenly bamboo
• Nandina domestica 'Twilight' – heavenly bamboo
• Nandina domestica (twisted leaf form) – heavenly bamboo
• Nandina domestica (twisted leaf, peach fruit) – heavenly bamboo
• Nandina domestica 'Umpqua Princess' – heavenly bamboo
• Nandina domestica 'Umpqua Warrior' – heavenly bamboo
• Nandina domestica (variegated) – variegated heavenly bamboo
• Nandina domestica 'Winter Pearl' – heavenly bamboo
• Nandina domestica 'Wood's Dwarf' – dwarf heavenly bamboo
• Narcissus – daffodil
• Narcissus 'Abba' – double daffodil
• Narcissus 'Acropolis' – double daffodil
• Narcissus 'Actaea' – poeticus daffodil
• Narcissus 'Aflame' – small-cupped daffodil
• Narcissus 'Albus Plenus Odoratus' – daffodil
• Narcissus 'Altruist' – small cup daffodil
• Narcissus 'Apricot Whirl'
• Narcissus 'Arkle'
• Narcissus 'Art Design'
• Narcissus 'Ascot' – double daffodil
• Narcissus 'Aspasia' – tazetta daffodil
• Narcissus 'Baby Boomer'
• Narcissus 'Baby Moon' – miniature jonquilla daffodil
• Narcissus 'Ballintoy' – large-cupped daffodil
• Narcissus 'Barenwyn'
• Narcissus 'Barrett Browning' – small-cupped daffodil
• Narcissus 'Bartley' – cyclamineus daffodil
• Narcissus 'Beautiful Eyes' – jonquil
• Narcissus 'Bella Vista' – daffodil
• Narcissus 'Beryl' – cyclamineus daffodil
• Narcissus 'Bitcoin'
• Narcissus 'Bittern' – small-cupped daffodil
• Narcissus 'Blushing Lady' – jonquilla daffodil
• Narcissus 'Border Chief' – large-cupped daffodil
• Narcissus 'Border Legend' – large cupped daffodil
• Narcissus 'Bravoure'
• Narcissus 'Can Can Girl' – daffodil
• Narcissus 'Canaliculatus' – tazetta daffodil
• Narcissus 'Canarybird' – tazetta daffodil
• Narcissus 'Carice'
• Narcissus 'Cassata' – collar daffodil
• Narcissus 'Cha Cha' – cyclamineus daffodil
• Narcissus 'Chanterelle' – collar daffodil
• Narcissus 'Chinita' – daffodil
• Narcissus 'Chit Chat' – jonquilla daffodil
• Narcissus 'Color Run'
• Narcissus 'Congress' – collar daffodil
• Narcissus 'Cosmopolitan'
• Narcissus 'Court Martial' – large-cupped daffodil
• Narcissus 'Cum Laude' – daffodil
• Narcissus 'Cyclataz'
• Narcissus 'Cyclops' – small-cupped daffodil
• Narcissus 'Dancing Moonlight'
• Narcissus 'Daphne'
• Narcissus 'Derringer'
• Narcissus 'Diamond Ring'
• Narcissus 'Doctor Alex Fleming' – large-cupped daffodil
• Narcissus 'Doll Baby'
• Narcissus 'Dolly Mollinger' – papillon daffodil
• Narcissus 'Double Itzim'
• Narcissus 'Double Smilies'
• Narcissus 'Dreamlight' – small-cupped daffodil
• Narcissus 'Dutch Master' – trumpet daffodil
• Narcissus 'Early Splendour' – tazetta daffodil
• Narcissus 'Eastern Dawn' – large-cupped daffodil
• Narcissus 'Electrus'
• Narcissus 'Elka'
• Narcissus 'Elvin's Voice'
• Narcissus 'Exotic Mystery' – daffodil
• Narcissus 'Falconet' – tazetta daffodil
• Narcissus 'February Gold' – cyclamineus daffodil
• Narcissus fernandesii – Fernandes daffodil
• Narcissus fernandesii var. cordubensis
• Narcissus 'Finch' – jonquilla daffodil
• Narcissus 'Firestreak' – papillon daffodil
• Narcissus 'Flower Record' – large-cupped daffodil
• Narcissus 'Fortissimo' – large-cupped daffodil
• Narcissus 'Fortune' – large-cupped daffodil
• Narcissus 'Fragrant Rose' – large-cupped daffodil
• Narcissus 'Garden Club of America'
• Narcissus 'Garden Fringe'
• Narcissus 'Garden Opera'
• Narcissus 'General Patton' – trumpet daffodil
• Narcissus 'Geranium' – tazetta daffodil
• Narcissus 'Golden Bells' – hoop petticoat daffodil
• Narcissus 'Golden Dawn' – tazetta daffodil
• Narcissus 'Golden Delicious'
• Narcissus 'Golden Echo'
• Narcissus 'Golden Quince' – miniature daffodil
• Narcissus 'Golden Sceptre' – jonquilla daffodil
• Narcissus 'Golden Sunbeam' – trumpet daffodil
• Narcissus 'Goose Green'
• Narcissus 'Grower's Pride'
• Narcissus 'Halvose' – tazetta daffodil
• Narcissus 'Hathor' – jonquilla daffodil
• Narcissus 'Hawera' – miniature daffodil
• Narcissus 'Heart to Heart'
• Narcissus 'Hillstar' – jonquilla daffodil
• Narcissus 'Honolulu' – double daffodil
• Narcissus 'Hunter Sunrise'
• Narcissus 'Ice Baby'
• Narcissus 'Ice Follies' – large-cupped daffodil
• Narcissus 'Ice Wings' – triandrus daffodil
• Narcissus 'Impreza'
• Narcissus 'Itzim'
• Narcissus 'Jenny' – cyclamineus daffodil
• Narcissus jonquilla 'Flore Pleno'
• Narcissus jonquilla var. henriquesii – miniature daffodil
• Narcissus 'Jules Verne' – large-cupped daffodil
• Narcissus 'Julia Jane' – hoop petticoat daffodil
• Narcissus 'Kapiti Peach'
• Narcissus 'Kassels Gold' – trumpet daffodil
• Narcissus 'Katie Heath' – triandus daffodil
• Narcissus 'Kedron' – large-cupped daffodil
• Narcissus 'Kokopelli'
• Narcissus 'La Belle'
• Narcissus 'Lancaster'
• Narcissus 'Larkwhistle' – cyclamineus daffodil
• Narcissus 'Laurens Koster' – tazetta daffodil
• Narcissus 'Lemon Beauty' – papillon daffodil
• Narcissus 'Liberty Bells' – triandrus daffodil
• Narcissus 'Little Alfred'
• Narcissus 'Little Gem'
• Narcissus 'Little Oliver'
• Narcissus 'Little Rusky'
• Narcissus 'Littlefield'
• Narcissus 'Llanfair'
• Narcissus 'Lucky Number'
• Narcissus ×macleayi
• Narcissus 'Mallee'
• Narcissus 'Manon Lescaut' – large-cupped daffodil
• Narcissus 'Martinette' – jonquilla
• Narcissus 'Mary Gay Lirette' – collar daffodil
• Narcissus 'Matapan' – small-cupped daffodil
• Narcissus 'Merels Favorite'
• Narcissus 'Merlin'
• Narcissus 'Mesa Verde'
• Narcissus 'Midget'
• Narcissus 'Minnow' – tazetta daffodil
• Narcissus 'Mint Julep' – small-cupped daffodil
• Narcissus 'Mite' – cyclaminius daffodil
• Narcissus 'Modern Art' – large-cupped daffodil
• Narcissus 'Mon Cherie' – large-cupped daffodil
• Narcissus 'Monal' – large-cupped daffodil
• Narcissus 'Moonlight Sensation'
• Narcissus 'More and More' – trumpet daffodil
• Narcissus 'Mount Hood' – trumpet daffodil
• Narcissus 'New-Baby' – miniature jonquilla daffodil
• Narcissus 'Night Cap' – large-cupped daffodil
• Narcissus 'Obdam' – double daffodil
• Narcissus obvallaris – Tenby daffodil
• Narcissus 'Odoratus'
• Narcissus ×odorus – Queen Anne's double jonquil
• Narcissus ×odorus 'Flore Pleno' – daffodil
• Narcissus ×odorus 'Plenus' – daffodil
• Narcissus 'Orange Cockade' – small-cupped daffodil
• Narcissus 'Orange Comet'
• Narcissus 'Orange Frilled' – large-cupped daffodil
• Narcissus 'Oxford Gold'
• Narcissus 'Pacific Coast' – miniature daffodil
• Narcissus 'Pacific Rim'
• Narcissus 'Palmares' – collar daffodil
• Narcissus 'Pappy George' – jonquilla daffodil
• Narcissus papyraceus – paper-white narcissus
• Narcissus 'Parisienne' – collar daffodil
• Narcissus 'Park Tropical'
• Narcissus 'Passionale' – large-cupped daffodil
• Narcissus 'Peaches and Cream' – large-cupped daffodil
• Narcissus 'Pencrebar' – double daffodil
• Narcissus 'Pet Finch' – jonquilla daffodil
• Narcissus 'Pink Charm' – large-cupped daffodil
• Narcissus 'Pink Paradise' – double daffodil
• Narcissus 'Pistachio' – trumpet daffodil
• Narcissus poeticus var. recurvus – pheasant's eye daffodil
• Narcissus 'Polar Hunter'
• Narcissus 'Polar Ice' – small-cupped daffodil
• Narcissus 'Popeye'
• Narcissus 'Precocious' – large-cupped daffodil
• Narcissus pseudonarcissus subsp. moschatus – daffodil
• Narcissus pseudonarcissus subsp. nobilis
• Narcissus 'Pueblo' – jonquilla daffodil
• Narcissus 'Rapture'
• Narcissus 'Red Curtain' – trumpet daffodil
• Narcissus 'Rijnveld's Early Sensation' – trumpet daffodil
• Narcissus 'Rikki' – jonquilla daffodil
• Narcissus 'Rip van Winkle' – double daffodil
• Narcissus romieuxii
• Narcissus 'Roseanna' – large-cupped daffodil
• Narcissus rupicola 'Yellow Pearl'
• Narcissus 'Sabrosa'
• Narcissus 'Sailboat' – jonquilla daffodil
• Narcissus 'Sailorman'
• Narcissus 'Scarlet Royal' – large-cupped daffodil
• Narcissus 'Sempre Avanti' – large-cupped daffodil
• Narcissus 'Silver Chimes' – tazetta daffodil
• Narcissus 'Silver Smiles'
• Narcissus 'Sir Winston Churchill' – double daffodil
• Narcissus 'Slice of Life'
• Narcissus 'Small Talk' – trumpet daffodil
• Narcissus 'Smiling Sun'
• Narcissus 'Smiling Twin'
• Narcissus 'Snow Baby'
• Narcissus 'Snowball'
• Narcissus 'Sorbet' – collar daffodil
• Narcissus 'Sound' – large-cupped daffodil
• Narcissus 'Sovereign'
• Narcissus 'Spoirot' – miniature daffodil
• Narcissus 'Starlight Sensation'
• Narcissus 'Stint' – triandrus daffodil
• Narcissus 'Stratosphere' – jonquilla daffodil
• Narcissus 'Sugarbush' – jonquilla daffodil
• Narcissus 'Sun Disc'
• Narcissus 'Sunlight Sensation' – triandrus daffodil
• Narcissus 'Surfside' – cyclamineus daffodil
• Narcissus 'Suzy' – jonquilla daffodil
• Narcissus 'Sweet Love'
• Narcissus 'Sweet Ocean'
• Narcissus 'Sweet Smiles'
• Narcissus 'Sweetness'
• Narcissus 'Tahiti' – double daffodil
• Narcissus 'Telamonius'
• Narcissus 'Telamonius Plenus' – Scrambled Eggs
• Narcissus 'Tête Bouclé'
• Narcissus 'Tête-à-Tête' – miniature daffodil
• Narcissus 'Thalia' – triandrus daffodil
• Narcissus 'Tittle Tattle' – jonquilla daffodil
• Narcissus 'Trepolo'
• Narcissus 'Tresamble' – triandrus daffodil
• Narcissus 'Trevithian'
• Narcissus 'Tricollet' – collar daffodil
• Narcissus 'Tropical Sunset'
• Narcissus 'Tullybeg' – small-cupped daffodil
• Narcissus 'Twinkling Yellow'
• Narcissus 'Ultimus' – large-cupped daffodil
• Narcissus 'Unsurpassable' – trumpet daffodil
• Narcissus 'Valdrome' – collar daffodil
• Narcissus 'Victoria von dem Busche'
• Narcissus 'Virginia Sunrise' – large-cupped daffodil
• Narcissus 'W.P. Milner' – trumpet daffodil
• Narcissus 'White Petticoat'
• Narcissus willkommii – jonquilla daffodil
• Narcissus 'Winter Waltz'
• Narcissus 'Wisley'
• Narcissus 'Xit'
• Narcissus 'Yazz'
• Narcissus 'Yellow Cheerfulness' – double daffodil
• Narcissus 'Yellow Parrot'
• Narcissus 'Yellow Sailboat'
• Nassella tenuissima – Mexican feather grass
• Nectaroscordum siculum subsp. bulgaricum
• Neillia tanakae – Japanese stephanandra
• Neltuma glandulosa
• Neltuma velutina
• Nelumbo nucifera – sacred lotus
• Neolepisorus fortunei – Fortune's ribbon fern
• Neolitsea daibuensis
• Neolitsea sericea – silky laurel
• Nepeta – catmint
• Nepeta 'Blue'
• Nepeta 'Chartreuse on the Loose' – catmint
• Nepeta 'Early Bird' – catmint
• Nepeta ×faassenii 'Novanepjun' – Junior Walker catmint
• Nepeta 'Joanna Reed' – catmint
• Nepeta multifida
• Nepeta 'Psfike' – Little Trudy catmint
• Nepeta 'Six Hills Giant' – catmint
• Nepeta subsessilis 'Blue Panther'
• Nepeta subsessilis 'Pink Panther'
• Nepeta – SylvesterBlue catmint
• Nerine 'Winter Sun' – Guernsey lily
• Nerium oleander 'Hardy Pink' – hardy oleander
• Nerium oleander 'Mathilde Ferrier' – hardy oleander
• Neviusia alabamensis – Alabama snow-wreath
• Nicotiana glauca 'Salta Blues' – blue tree tobacco
• Nicotiana longiflora
• Nicotiana mutabilis – flowering tobacco
• Nolina – bear-grass
• Nolina durangensis – beargrass
• Nolina erumpens – foothill bear-grass
• Nolina lindheimeriana – devil's shoestring
• Nolina longifolia – Mexican grass tree
• Nolina nelsonii – Nelson's blue bear-grass
• Notholirion thomsonianum – Thomson's notholirion
• Notholithocarpus densiflorus var. echinoides – bush tanoak
• Nothoscordum montevidense
• Nothoscordum sellowianum – false yellow crocus
• Nothotsuga longibracteata – Bristlecone hemlock
• Notocactus apricus – sun cup
• Notocactus floricomus – Tom Thumb cactus
• Notocactus laetivirens – ball cactus
• Notocactus mammulosus – Tom Thumb cactus
• Notocactus schlosseri
• Notocactus submammulosus – sub-nippled hardy notocactus
• Nymphaea 'Rosenymphe'
• Nyssa aff. schweliensis
• Nyssa sylvatica 'JFS-red' – Firestarter tupelo
• Nyssa sylvatica 'Miss Scarlet' – black gum
• Nyssa sylvatica (weeping)
• Nyssa ursina – bear tupelo

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O

• Ocimum ×citriodorum 'Pesto Perpetuo'
• Odontonema tubaeforme – firespike
• Oenothera acaulis
• Oenothera argillicola – shale barren evening primrose
• Oenothera capillifolia subsp. berlandieri 'Butter Cream' – sundrop
• Oenothera capillifolia (Dripping Springs) – sundrops
• Oenothera fruticosa 'Fireworks' – evening primrose
• Oenothera 'Lemonade'
• Oenothera lindheimeri 'Little Janie' – wand flower
• Oenothera lindheimeri 'Sparkle White' – wand flower
• Oenothera lindheimeri
• Oenothera lindheimeri 'Walsilfou' – Walberton's Silver Fountain wand flower
• Oenothera macrocarpa 'Evening Sun'
• Oenothera serrulata 'Prairie Lode' – sundrops
• Oenothera 'Sunglow' – Ladybird Texas primrose
• Olsynium junceum subsp. depauperatum
• Ononis ramosissima – bush restharrow
• Ononis spinosa
• Onosma
• Onosma stellulata
• Onychium japonicum 'Sichuan Lace' – carrot fern
• Ophiopogon – mondo grass
• Ophiopogon bodinieri – mondo grass
• Ophiopogon 'Golden Zebra' – mondo grass
• Ophiopogon 'Hakuryukou-no-kawhrhi' – variegated mondo grass
• Ophiopogon 'Hosoba Kokuryu' – mondo grass
• Ophiopogon intermedius – Himalayan lilyturf
• Ophiopogon japonicus – mondo grass
• Ophiopogon japonicus 'Aritaki' – mondo grass
• Ophiopogon japonicus 'Gyoku Ryu' – dwarf mondo grass
• Ophiopogon japonicus 'Monkeyshine' – mondo grass
• Ophiopogon japonicus 'Nana Variegata' – dwarf mondo grass
• Ophiopogon japonicus 'Tuff Tuft Lavender' – mondo grass
• Ophiopogon (large fruit)
• Ophiopogon malcolmsonii – mondo grass
• Ophiopogon planiscapus – mondo grass
• Ophiopogon planiscapus 'Kokuryu' – black mondo grass
• Ophiopogon umbraticola – mondo grass
• Ophiopogon umbraticola 'Sparkler' – mondo grass
• Opuntia – prickly-pear
• Opuntia aurea – golden prickly pear
• Opuntia aurea 'Al Parker' – Walk in Beauty golden prickly pear
• Opuntia aurea 'Apricot Glory' – Walk in Beauty golden prickly pear
• Opuntia aurea 'Chocolate Princess' – Walk in Beauty golden prickly pear
• Opuntia aurea 'Colorado Sunset' – Walk in Beauty golden prickly pear
• Opuntia aurea 'Coombe's Winter Glow' – golden prickly pear
• Opuntia aurea 'Hawaiian Punch' – Walk in Beauty golden prickly pear
• Opuntia aurea 'Ruffle Apricot' – Walk in Beauty golden prickly pear
• Opuntia cacanapa 'Ellisiana' – spineless prickly-pear
• Opuntia clavata – club cholla
• Opuntia fragilis
• Opuntia fragilis 'Potato'
• Opuntia fragilis 'Tiny Michigan Form'
• Opuntia gilvescens 'Oklahoma Pancake' – western prickly pear cactus
• Opuntia humifusa – prickly pear cactus
• Opuntia humifusa 'Sunshine' – eastern prickly pear cactus
• Opuntia phaeacantha 'Mesa Sky' – tulip prickly pear cactus
• Opuntia phaeacantha 'Plum'
• Opuntia polyacantha 'Crystal Tide'
• Opuntia polyacantha f. rosaeflora – Plains prickly-pear
• Opuntia polycantha 'Peter Pan'
• Opuntia pusilla – beach prickly-pear cactus
• Opuntia woodsii – prickly pear cactus
• Orbexilum pedunculatum
• Orbexilum psoralioides – spider flower
• ×Oredenia 'Fusion of Fire'
• Oreocharis pankaiyuae – golden tremacron
• Oreocharis speciosa
• Origanum acutidens
• Origanum 'Amethyst Falls' – ornamental oregano
• Origanum 'Gilt Trip' – oregano
• Origanum laevigatum 'Lizzie' – oregano
• Origanum laevigatum 'Pilgrim' – oregano
• Origanum vulgare 'Aureum' – gold leafed oregano
• Orixa japonica – Japanese orixa
• Orixa japonica 'Pearl Frost' – variegated Japanese orixa
• Ornithogalum balansae
• Ornithogalum magnum – star of Bethlehem
• Ornithogalum viridiflorum
• Orostachys fimbriata
• Orostachys furusei – dunce cap
• Orostachys malacophylla – duncecap
• Orostachys malacophylla var. aggregata
• Osmanthus
• Osmanthus armatus – devil wood
• Osmanthus armatus 'Jim Porter' – devil wood
• Osmanthus armatus ('Jim Porter' variegated) – devil wood
• Osmanthus armatus 'Zipline' – devil wood
• Osmanthus ×fortunei – Fortune's osmanthus
• Osmanthus ×fortunei 'Carl Wheeler' – Fortune's osmanthus
• Osmanthus ×fortunei (entire leaf form) – Fortune's osmanthus
• Osmanthus ×fortunei 'Mokusui' – Fortune's osmanthus
• Osmanthus ×fortunei 'Ninth and Polk' – Fortune's osmanthus
• Osmanthus ×fortunei 'UNC' – Fortune's osmanthus
• Osmanthus fragrans var. aurantiacus – orange flowered tea olive
• Osmanthus fragrans f. aurantiacus 'Apricot Echo' – sweet olive
• Osmanthus fragrans var. aurantiacus 'Beni Kin Mokusei' – sweet olive
• Osmanthus fragrans f. aurantiacus 'Butter Yellow' – yellow sweet olive
• Osmanthus fragrans f. aurantiacus 'Conger Yellow' – yellow sweet olive
• Osmanthus fragrans f. aurantiacus 'Live Oak Gold' – golden sweet olive
• Osmanthus fragrans f. aurantiacus 'Orange Supreme' – orange sweet olive
• Osmanthus fragrans 'Chuang Tong Jing Gui' – sweet olive
• Osmanthus fragrans 'Da Hong Zhu Sha Gui' – sweet olive
• Osmanthus fragrans (female) – sweet olive
• Osmanthus fragrans 'Gold Splash' – sweet olive
• Osmanthus fragrans 'Qiannan Guifei' – sweet olive
• Osmanthus fragrans 'Rixiang Gui' – sweet olive
• Osmanthus fragrans var. thunbergii – Japanese sweet olive
• Osmanthus fragrans 'Tianxiang Taige' – sweet olive
• Osmanthus fragrans 'Yinbi Shuanghui' – sweet olive
• Osmanthus fragrans 'Zao Hong Don Gui' – sweet olive
• Osmanthus heterophyllus 'Akebono' – holly olive
• Osmanthus heterophyllus (ex. 'Sasaba') – holly olive
• Osmanthus heterophyllus 'Fastigiata' – holly olive
• Osmanthus heterophyllus 'Goshiki' – holly olive
• Osmanthus heterophyllus 'Hamakita Shirofu' – holly olive
• Osmanthus heterophyllus 'Hariyama' – holly olive
• Osmanthus heterophyllus 'Kaori Hime' – Chinese false holly
• Osmanthus heterophyllus 'Kembu' – holly olive
• Osmanthus heterophyllus 'Latifolius Variegatus' – holly olive
• Osmanthus heterophyllus (No. 2) – holly olive
• Osmanthus heterophyllus 'Ogon' – gold holly olive
• Osmanthus heterophyllus 'Purpureus' – holly olive
• Osmanthus heterophyllus 'Sasaba' – holly olive
• Osmanthus heterophyllus 'Shien' – Party Lights holly olive
• Osmanthus heterophyllus 'Subangulatus' – holly olive
• Osmanthus cf. serrulatus – serrate leaf sweet olive
• Osmunda japonica – Asian royal fern
• Ostrya japonica – Japanese hophornbeam
• Oxalis bowiei – Cape shamrock
• Oxalis crassipes 'Alba'
• Oxalis crassipes 'Cherry Spritzer'
• Oxalis debilis var. corymbosa 'Aureoreticulata' – pink woodsorrel
• Oxalis flava (yellow)
• Oxalis lasiandra
• Oxalis pardalis
• Oxalis tetraphylla – iron cross lucky clover
• Oxalis tetraphylla 'Iron Cross'
• Oxalis triangularis – false shamrock
• Oxalis triangularis 'Ebony' – ALLURE false shamrock
• Oxalis triangularis 'Fanny' – Wood Sorrel
• Oxalis triangularis 'Irish Mist' – false shamrock
• Oxalis triangularis (Irish Mist x Atropurpurea) – false shamrock
• Oxalis triangularis 'Mijke' – purple shamrock
• Oxalis triangularis subsp. papilionacea – purple false shamrock
• Oxydendrum arboreum 'Mike's Streamer'
• Oxypetalum coeruleum – tweedia
• Oxypetalum tomentosum – wooly dogbane

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• Pachysandra axillaris subsp. stylosa – Chinese pachysandra
• Pachysandra procumbens – Allegheny spurge
• Pachysandra terminalis 'Cutleaf' – Japanese pachysandra
• Pachysandra terminalis 'Green Sheen' – Japanese pachysandra
• Paeonia 'Amalia Olson' – garden peony
• Paeonia 'Armani' – garden peony
• Paeonia 'Bartzella' – Itoh hybrid peony
• Paeonia 'Bernice Carr' – garden peony
• Paeonia aff. caucasica – species peony
• Paeonia 'Cora Louise' – Itoh peony
• Paeonia 'Coral Charm' – garden peony
• Paeonia 'Coral 'n Gold' – garden peony
• Paeonia 'Coral Sunset' – garden peony
• Paeonia 'Cytherea' – garden peony
• Paeonia 'Do Tell' – garden peony
• Paeonia 'Early Scout' – garden peony
• Paeonia 'Eliza Lundy' – garden peony
• Paeonia 'Fairfield' – garden peony
• Paeonia 'Garden Lace' – garden peony
• Paeonia 'Garden Treasure' – Itoh peony
• Paeonia 'Hillary' – Itoh peony
• Paeonia 'Honor' – garden peony
• Paeonia 'Krinkled White' – garden peony
• Paeonia lactiflora – garden peony
• Paeonia lactiflora 'Festiva Maxima' – garden peony
• Paeonia lactiflora 'Karl Rosenfield' – garden peony
• Paeonia 'Miss America' – garden peony
• Paeonia 'Nice Gal' – garden peony
• Paeonia ostii 'Feng Dan Bai' – Phoenix White Osti's tree peony
• Paeonia 'Pecher' – garden peony
• Paeonia peregrina – species peony
• Paeonia 'Pink Double Dandy' – Keiko Itoh peony
• Paeonia 'Pink Hawaiian Coral' – garden peony
• Paeonia 'Prairie Charm' – Itoh peony
• Paeonia 'Requiem' – garden peony
• Paeonia 'Rozella' – garden peony
• Paeonia 'Scarlett O'Hara' – garden peony
• Paeonia 'Scrumdidleyumptious' – Itoh peony
• Paeonia 'Seashell' – garden peony
• Paeonia 'Smith Opus 2' – Takara garden peony
• Paeonia 'Smithopus10' – Candy Apple Itoh peony
• Paeonia 'Smithopus14' – Hot Tamale Itoh peony
• Paeonia 'Smithopus3' – Double Bubble Pink Itoh peony
• Paeonia 'Smithopus5' – Peach-A-Licious Itoh peony
• Paeonia 'Stellar Charm' – garden peony
• Paeonia suffruticosa 'Sahohine' – tree peony
• Paeonia suffruticosa 'Shima-nishiki' – bicolor tree peony
• Paeonia suffruticosa 'Shimadaijin' – tree peony
• Paeonia 'The Fawn' – garden peony
• Paeonia 'Topeka Garnet' – garden peony
• Paeonia 'Trafford W. Bigger' – garden peony
• Paeonia 'White Frost' – garden peony
• Paesia scaberula – scented fern
• Pancratium canariense – Canary sea daffodil
• Panicum amarum 'Dewey Blue' – common switch grass
• Panicum 'Cape Breeze' – common switch grass
• Panicum virgatum – common switch grass
• Panicum virgatum 'Cheyenne Sky' – Prairie Winds common switch grass
• Panicum virgatum 'Dallas Blues' – common switch grass
• Panicum virgatum 'Heavy Metal' – common switch grass
• Panicum virgatum 'Northwind' – common switch grass
• Panicum virgatum 'Rr1' – Ruby Ribbons common switch grass
• Panicum virgatum 'Summer Sunrise' – common switch grass
• Panicum virgatum 'Thundercloud' – common switch grass
• Paradisea liliastrum – St. Bruno's lily
• Paris
• Paris chinensis
• Parodia
• Parrotia persica 'Burgundy' – Persian ironwood
• Parrotia persica 'Chrishaven1' – Golden Bell Tower ironwood
• Parrotia persica 'Henry's Dwarf'
• Parrotia persica 'Pendula' – weeping Persian ironwood
• Parrotia persica 'Persian Lace' – ironwood
• Parrotia persica 'Victor' – Persian ironwood
• Parrotia subaequalis – Chinese ironwood
• Parrotia subaequalis 'Mikinori'
• Parrotiopsis jacquemontiana – false ironwood
• Parthenocissus henryana – silvervein creeper
• Parthenocissus henryana 'Evening Gloves' – silvervein creeper
• Parthenocissus tricuspidata – Boston ivy
• Parthenocissus tricuspidata 'Fenway Park' – Boston ivy
• Parthenocissus tricuspidata 'Ginza Light' – Boston ivy
• Passiflora 'Elizabeth' – passion flower
• Passiflora incarnata (white form) – white maypop passion flower
• Passiflora 'Inspiration' – purple passion flower
• Passiflora 'Lady Margaret' – passion flower
• Passiflora 'Monika Fischer' – passion flower
• Patrinia
• Patrinia monandra
• Patrinia scabiosifolia – golden lace
• Pavonia aurigloba – Brazillian candles
• Pavonia brasiliensis
• Pavonia glechomoides – swamp mallow
• Pelargonium
• Pelargonium ranunculophyllum
• Pelargonium sidoides – silver leaf geranium
• Pelargonium transvaalense 'African Princess' – hardy pelargonium
• Peltandra virginica – arrow arum
• Peltophorum dubium – yellow poinciana
• Pennisetum alopecuroides 'Etouffee' – fountain grass
• Pennisetum alopecuroides 'Lemon Squeeze' – fountain grass
• Pennisetum orientale 'Karley Rose' – fountain grass
• Pennisetum orientale 'Tall Tails' – fountain grass
• Pennisetum purpureum – elephant grass
• Pennisetum purpureum 'Prince' – elephant grass
• Penstemon – beardtongue
• Penstemon barbatus 'Elfin Pink' – golden-beard penstemon
• Penstemon barbatus 'Novapenrub' – Rock Candy Ruby golden-beard penstemon
• Penstemon 'Dark Towers' – beard tongue
• Penstemon aff. digitalis – beardtongue
• Penstemon digitalis 'Blackbeard' – beardtongue
• Penstemon 'Flock of Flamingos' – penstemon
• Penstemon hirsutus – hairy beardtongue
• Penstemon laevigatus
• Penstemon
• Penstemon 'Onyx and Pearls' – beardtongue
• Penstemon 'Parade of Parrots' – penstemon
• Penstemon tenuis – sharpsepal beardtongue
• Perovskia atriplicifolia 'CrazyBlue' – Russian sage
• Perovskia atriplicifolia 'Lisslitt' – Lacey Blue Russian sage
• Perovskia 'Novaperlac'
• Persea liebmannii – Mexican redbay
• Persicaria amplexicaulis 'Fat Domino'
• Persicaria amplexicaulis 'Firetail' – mountain fleece flower
• Persicaria amplexicaulis 'Golden Arrow' – mountain fleece
• Persicaria microcephala 'Red Dragon' – knotweed
• Persicaria virginiana 'Painter's Palette' – variegated Virginia knotweed
• ×Petchoa 'KLECA24829' (Enviva Blue)
• Petrosedum rupestre – Jenny's stonecrop
• Petrosedum rupestre 'Nonal' – Sunsplash Jenny's stonecrop
• Petrosedum rupestre (red leaf form) – Jenny's stonecrop
• Petunia exserta
• Peucedanum japonicum 'Hakikomi Fu'
• Phalocallis coelestis – goblet flower
• Phedimus 'Czar's Gold' – Mongolian stonecrop
• Phedimus selskianus – Amur stonecrop
• Phedimus selskianus 'Goldilocks' – Amur stonecrop
• Phedimus sichotensis
• Phedimus spurious 'Voodoo' – Caucasian stonecrop
• Phemeranthus calycinus – cherry sunbright
• Phemeranthus parviflorus – sunbright
• Philadelphus – mock-orange
• Philadelphus coronarius 'Aureus' – mock-orange
• Philadelphus 'G15-097' – Pearls of Perfume mock-orange
• Philadelphus 'NC-Phi13' – mock-orange
• Philadelphus 'Polar Star' – mock-orange
• Philadelphus satsumi – mock-orange
• Philadelphus 'Silberregen' – silver showers mock-orange
• Philadelphus 'Snow Velvet' – mock-orange
• Philadelphus 'Snowwhite Fantasy' – Snow White Sensation mock-orange
• Philadelphus 'Starbright' – mock-orange
• Philadelphus tomentosus – fuzzy mock-orange
• Phlomis bourgaei – Bourgeau sage
• Phlomis chrysophylla – Jerusalem sage
• Phlomis ×cytherea
• Phlomis fruticosa – Jerusalem sage
• Phlomis grandiflora – Jerusalem sage
• Phlomis herba-venti – Iranian Jerusalem sage
• Phlomis lychnitis – candela
• Phlomis lycia
• Phlomis tuberosa – tuberous Jerusalem sage
• Phlomis viscosa
• Phlomoides maximowiczii – torchwort
• Phlomoides pratensis
• Phlox 'Amethyst Pearl' – garden phlox
• Phlox 'Bedazzled Lavender' – garden phlox
• Phlox carolina 'Kim' – Carolina phlox
• Phlox divaricata 'Blue Moon' – woodland phlox
• Phlox divaricata subsp. laphamii 'Chattahoochee' – woodland phlox
• Phlox 'KazI14830' – Gisele White garden phlox
• Phlox – Multi Confetti Spring garden phlox
• Phlox nivalis 'Camla' – trailing phlox
• Phlox nivalis (near white) – trailing phlox
• Phlox 'Opening Act White' – garden phlox
• Phlox paniculata 'Backlight' – Luminary garden phlox
• Phlox paniculata 'David' – garden phlox
• Phlox paniculata 'Delta Snow' – tall phlox
• Phlox paniculata 'Jeana' – tall phlox
• Phlox paniculata 'John Fanick' – tall phlox
• Phlox paniculata 'Red Riding Hood' – tall phlox
• Phlox paniculata 'Shockwave' – garden phlox
• Phlox pilosa – downy phlox
• Phlox pulchra (Cahaba River)
• Phlox subulata 'Emerald Blue' – moss phlox
• Phlox subulata 'Herbert'
• Phlox subulata 'Nettleton Variation' – nettleton's variegated leaf thrift
• Phlox subulata 'Snowflake' – moss phlox
• Phlox subulata 'Spring Dark Pink'
• Phlox 'Wanda' – garden phlox
• Phoebe sheareri
• Phormium 'Amazing Red'
• Phormium 'Apricot Queen' – New Zealand flax
• Phormium colensoi – mountain flax
• Phormium 'Evening Glow'
• Phormium 'Jester'
• Phormium 'Mat's Merlot'
• Phormium 'Rainbow Maiden'
• Phormium 'Sundowner'
• Photinia davidiana 'Palette' – Chinese photinia
• Photinia ×fraseri 'Cassini' – Pink Marble red tip photinia
• Photinia integrifolia – Himalayan chokeberry
• Photinia niitakayamensis – Yushan pear
• Photinia serratifolia 'Green Giant' – Chinese photinia
• Photinia villosa 'Village Shade' – downy photinia
• Phuopsis stylosa – crosswort
• Phygelius 'TNPHYCRO' – Colorburst Rose cape fuchsia
• Phygelius 'Trewidden Pink' – Cape fuchsia
• Phyllocladus cf. alpinus – mountain toatoa
• Phyllostachys nigra – black bamboo
• Physocarpus capitatus – western ninebark
• Physocarpus malvaceus – mallow ninebark
• Physocarpus opulifolius 'Donna May' – Little Devil ninebark
• Physocarpus opulifolius 'Nanus' – dwarf ninebark
• Physocarpus opulifolius 'ZLEYel2' – Raspberry Lemonade dwarf ninebark
• Physostegia virginiana 'Vivid' – obedient plant
• Picea abies 'Dandylion' – Norway spruce
• Picea abies 'Dan's Dwarf' – Norway spruce
• Picea abies 'Jessy' – Norway spruce
• Picea abies 'Maxwellii' – Norway spruce
• Picea abies 'Perry's Gold' – Norway spruce
• Picea alcoquiana 'Prostrata' – prostrate Alcock spruce
• Picea glauca 'Ducharme' – dwarf white spruce
• Picea glauca 'Westervelt' – Skinny Blue Genes Black Hills spruce
• Picea likiangensis var. montigena – northern Likiang spruce
• Picea martinezii – Nuevo León spruce
• Picea omorika 'Bruns' – Serbian Spruce
• Picea omorika 'Kuck's Weeping' – weeping Serbian spruce
• Picea omorika 'Osmaston No. 1' – dwarf Serbian spruce
• Picea orientalis – Caucasian spruce
• Picea orientalis 'Aureospicata' – gold-tip Caucasian spruce
• Picea orientalis 'Nana' – Caucasian spruce
• Picea orientalis 'Skylands' – Caucasian spruce
• Picea pungens 'Gebelle's' – Golden Spring Colorado spruce
• Picea pungens 'Hoopsii' – Colorado spruce
• Picea pungens 'Maigold' – Colorado spruce
• Picea pungens 'Thuem' – Colorado spruce
• Picea rubens 'HB' – red spruce
• Picea torano – tiger-tail spruce
• Pieris japonica 'Compacta' – Japanese andromeda
• Pieris japonica 'Farrowpjrf' – Interstella Japanese andromeda
• Pieris japonica 'Purity' – Japanese andromeda
• Pieris japonica 'Pygmaea' – pygmy Japanese andromeda
• Pieris taiwanensis – Formosan andromeda
• Pinellia peltata
• Pinus aristata 'Lemon Frost' – bristlecone pine
• Pinus armandii var. mastersiana – Masters' pine
• Pinus bungeana – lacebark pine
• Pinus bungeana 'Silver Ghost' – lacebark pine
• Pinus densiflora 'Burke's Red Variegated' – variegated Japanese red pine
• Pinus densiflora 'Cesarini's Variegated' – Japanese red pine
• Pinus densiflora 'Green Diamond' – Japanese red pine
• Pinus densiflora 'Low Glow' – dwarf Japanese red pine
• Pinus densiflora 'Vibrant' – dwarf Japanese red pine
• Pinus 'Domingo' – white pine
• Pinus engelmannii – Apache pine
• Pinus heldreichii 'Irish Bell' – Bosnian pine
• Pinus heldreichii 'Mint Truffle' – Bosnian Pine
• Pinus koraiensis 'Dragon's Eye' – Korean pine
• Pinus koraiensis 'Jack Corbit' – Korean pine
• Pinus kwangtungensis – Guangdong white pine
• Pinus morrisonicola – Taiwan white pine
• Pinus mugo 'Piggelmee' – mugo pine
• Pinus mugo 'Spilled Milk' – mugo pine
• Pinus nigra 'Arnold Sentinel' – fastigiate Austrian black pine
• Pinus parviflora 'Aoi' – Japanese white pine
• Pinus parviflora 'Brevifolia' – Japanese white pine
• Pinus parviflora 'Gimborn's Ideal' – Japanese white pine
• Pinus parviflora 'Negishi' – Japanese white pine
• Pinus ×schwerinii 'Wiethorst' – Schwerin's pine
• Pinus strobiformis 'Foxtail' – compact southwestern white pine
• Pinus strobus 'Diggy' – eastern white pine
• Pinus strobus 'Golden Showers' – eastern white pine
• Pinus strobus 'Greg'
• Pinus strobus 'Pendula' – eastern white pine
• Pinus sylvestris 'Green Penguin' – scotch pine
• Pinus sylvestris 'KBN Gold' – Scots pine
• Pinus sylvestris 'Moseri' – Scots pine
• Pinus tabuliformis 'Twisted Sister' – Chinese pine
• Pinus taeda – loblolly pine
• Pinus taeda 'Little Albert' – dwarf loblolly pine
• Pinus taeda NCSU Dwarf Group – dwarf loblolly pine
• Pinus thunbergii (Corticosa group) – cork-bark Japanese black pine
• Pinus thunbergii 'Emery's Dwarf' – Japanese black pine
• Pinus thunbergii 'Kotobuki' – dwarf Japanese black pine
• Pinus thunbergii 'War Bonnet' – Japanese black pine
• Pinus wallichiana – Himalayan pine
• Piper auritum – root beer plant
• Piper kadsura 'Pied Piper' – Japanese pepper
• Pittosporum – pittosporum
• Pittosporum heterophyllum – Chinese pittosporum
• Pittosporum heterophyllum 'Variegatum' – variegated pittosporum
• Pittosporum heterophyllum 'Winter Frost' – Chinese pittosporum
• Pittosporum illicioides 'Strappy' – narrow-leaved pittosporum
• Pittosporum parvilimbum
• Pittosporum 'Sappy' – pittosporum
• Pittosporum tobira 'Kansai Sunburst' – Japanese pittosporum
• Pittosporum tobira 'Spring Bouquet' – Japanese pittosporum
• Pittosporum tobira 'Tall 'N Tough' – Japanese pittosporum
• Pittosporum aff. truncatum – truncated pittosporum
• Pityopsis graminifolia – narrowleaf silk-grass
• Planera aquatica – water elm
• Planera aquatica 'Falling Waters' – weeping water elm
• Platanus lindeniana – Linden's plane tree
• Platanus rzedowskii – Rzedowski's sycamore
• Platycladus orientalis – oriental arborvitae
• Platycladus orientalis 'Coral Queen' – oriental arborvitae
• Platycladus orientalis 'Franky Boy' – oriental arborvitae
• Platycladus orientalis 'Morgan' – oriental arborvitae
• Platycladus orientalis 'Southport' – oriental arborvitae
• Platycodon grandiflorus 'Double Blue' – balloon flower
• Platycodon grandiflorus 'Fuji White' – white balloon flower
• Platycodon grandiflorus 'Uzukikyo' – balloon flower
• Pleione Alishan gx – hardy orchid
• Pleione Irazu gx – Tibetan orchid
• Pleione limprichtii – hardy Chinese orchid
• Pleione Vesuvius gx – Tibetan orchid
• Pleopeltis bombycina 'Morro dos Conventos'
• Podocarpus acutifolius – needle-leaved totara
• Podocarpus chinensis – Chinese podocarpus
• Podocarpus chingianus – Ching's yew
• Podocarpus chingianus (upright Alabama form) – Ching's yew
• Podocarpus 'Flame' – Buddhist pine
• Podocarpus forrestii
• Podocarpus lawrencei 'Purple King' – mountain plum-pine
• Podocarpus macrophyllus – Buddhist pine
• Podocarpus macrophyllus 'Akame' – Buddhist pine
• Podocarpus macrophyllus 'Aureus' – Buddhist pine
• Podocarpus macrophyllus (dwarf) – Buddhist pine
• Podocarpus macrophyllus (ex 'Okina') – Buddhist pine
• Podocarpus macrophyllus var. maki 'Argenteus' – bigleaf Buddhist pine
• Podocarpus macrophyllus var. maki 'Edgefield Hardy' – bigleaf Buddhist pine
• Podocarpus macrophyllus var. maki (ex. 'Edgefield Hardy') – bigleaf Buddhist pine
• Podocarpus macrophyllus var. maki 'Kinme' – bigleaf Buddhist pine
• Podocarpus macrophyllus 'Miu' – Roman Candle Buddhist pine
• Podocarpus macrophyllus 'Okina' – Buddhist pine
• Podocarpus macrophyllus 'Pringle's Dwarf' – Buddhist pine
• Podocarpus macrophyllus 'Sunshine Spire' – Buddhist pine
• Podocarpus macrophyllus 'Uptight' – Buddhist pine
• Podocarpus macrophyllus (variegated) – Buddhist pine
• Podocarpus matudae – Bird's tongue pine
• Podocarpus 'Orangeade' – plum pine
• Podocarpus pilgeri – Pilger's plum pine
• Podocarpus totara 'Aureus' – golden totara
• Podophyllum hexandrum – Himalayan mayapple
• Podophyllum peltatum – mayapple
• Podophyllum peltatum 'Wagon Wheel' – mayapple
• Podophyllum pleianthum – Chinese mayapple
• Podophyllum 'Spotty Dotty' – hybrid mayapple
• Podophyllum versipelle
• Polianthes ×bundrantii – Mexican firecracker
• Polianthes 'Chirp'
• Polianthes 'Sunset'
• Polianthes tuberosa 'Sensation' – tuberose
• Polianthes tuberosa 'Swarna Rekah' – tuberose
• Polianthes tuberosa 'Yellow Baby' – tuberose
• Poliomintha bustamanta – Mexican oregano
• Poliothyrsis sinensis – Chinese pearlbloom
• Polygonatum – Solomon's seal
• Polygonatum arisanense var. formosanum – Solomon's seal
• Polygonatum biflorum – smooth Solomon's seal
• Polygonatum biflorum 'Arkansas Giant' – Solomon's seal
• Polygonatum biflorum 'Prince Charming' – dwarf smooth Solomon's seal
• Polygonatum bulbosum – Solomon's seal
• Polygonatum cyrtonema – Solomon's seal
• Polygonatum falcatum 'Nippon Sunbeam' – Solomon's seal
• Polygonatum hirtum – hairy Solomon's seal
• Polygonatum hirtum (dwarf form) – dwarf glossy leaf Solomon seal
• Polygonatum huanum (variegated)
• Polygonatum involucratum – Solomon's seal
• Polygonatum involucratum 'Shiro Shima Fu'
• Polygonatum kingianum – Solomon's seal
• Polygonatum kingianum (orange flowered form) – Solomon's seal
• Polygonatum latifolium – Solomon's seal
• Polygonatum latifolium 'Heronswood' – Solomon's seal
• Polygonatum macranthum 'Tiger Stripes' – Solomon's seal
• Polygonatum aff. mengtzense
• Polygonatum multiflorum – European Solomon's seal
• Polygonatum odoratum – Solomon's seal
• Polygonatum odoratum 'Akaijaku' – Solomon's seal
• Polygonatum odoratum 'Byakko' – Solomon's seal
• Polygonatum odoratum 'Double Stuff' – Soloman's seal
• Polygonatum odoratum 'Fireworks' – Solomon's seal
• Polygonatum odoratum 'Goldilocks' – Solomon's seal
• Polygonatum odoratum 'Ki Chou' – Solomon's seal
• Polygonatum odoratum var. maximowiczii – Solomon's seal
• Polygonatum odoratum var. maximowiczii 'Sajin' – Solomon's seal
• Polygonatum odoratum var. maximowiczii 'Tsumugi Nishiki' – Solomon's seal
• Polygonatum odoratum var. pluriflorum 'Jinguji' – Solomon's seal
• Polygonatum odoratum var. pluriflorum 'Variegatum' – Solomon's seal
• Polygonatum prattii – Chinese Solomon's seal
• Polygonatum sibiricum (tetraploid) – Solomon's seal
• Polygonatum (streaky foliage)
• Polygonatum uncinatum – Solomon's seal
• Polygonatum urceolatum – Solomon's seal
• Polygonatum verticillatum (streaked)
• Polygonatum vietnamicum – Solomon's seal
• Polygonatum yunnanense – Solomon's seal
• Polygonatum zhejiangensis – giant Solomon's seal
• Polypodium guttatum – Mexican licorice fern
• Polyspora – fried egg tree
• Polyspora (2018-103)
• Polyspora 'JC Raulston Select'
• Polystichum
• Polystichum acrostichoides – Christmas fern
• Polystichum luctuosum (ex. 'Silver Moon')
• Polystichum makinoi – Makino's shield fern
• Polystichum munitum – western swordfern
• Polystichum polyblepharum – tassel fern
• Polystichum tsus-simense – Korean rock fern
• Polystichum tsus-simense var. mayebarae 'Tao Yuan Giant' – tassel fern
• Populus monticola – white bark cottonwood
• Porophyllum linifolium
• Potentilla argentea – silvery cinquefoil
• Potentilla neumanniana
• Primula 'Dale Henderson' – garden primrose
• Primula japonica – Japanese primrose
• Primula kisoana var. alba
• Primula palinuri – bear's ear
• Primula sieboldii 'Drag Queen'
• Primula sieboldii 'Fuji Snow'
• Primulina liguliformis
• Proboscidea louisianica
• Pronephrium penangianum – Chinese peng fern
• Prospero autumnale
• Prunella laciniata – cutleaf selfheal
• Prunus ×blireana – Blireana plum
• Prunus campanulata – Taiwan cherry
• Prunus incisa – Fuji cherry
• Prunus incisa 'Rinpo' – Zuzu dwarf Fuji cherry
• Prunus incisa 'Shikizaki' – weeping Fuji cherry
• Prunus jacquemontii – Afghan bush cherry
• Prunus 'JFS-KW 14' – First Blush flowering cherry
• Prunus laurocerasus 'Chestnut Hill' – dwarf cherry laurel
• Prunus laurocerasus 'Majestic Jade' – cherry laurel
• Prunus mexicana – Mexican plum
• Prunus mume – flowering apricot
• Prunus mume 'Big Joe' – flowering apricot
• Prunus mume 'Bonita' – flowering apricot
• Prunus mume 'Bridal Veil' – flowering apricot
• Prunus mume (Chicory Nursery clone) – flowering apricot
• Prunus mume 'Kobai' – flowering apricot
• Prunus mume 'Nicholas' – flowering apricot
• Prunus mume 'Okitsu-akabana' – flowering apricot
• Prunus mume 'Omoi-no-mama' – flowering apricot
• Prunus mume 'Peggy Clarke' – flowering apricot
• Prunus mume 'Rose Bud' – flowering apricot
• Prunus mume 'Tojibai' – flowering apricot
• Prunus mume 'Yuh-Hwa' – flowering apricot
• Prunus (NA 63480) – U.S. National Arboretum hybrid flowering cherry
• Prunus persica 'Bonfire' – purple-leaf peach
• Prunus persica 'Corinthian Pink' – columnar flowering peach
• Prunus persica 'NC Peach-6' – Ruby Ruffle purple-leaf dwarf peach
• Prunus persica 'NCSU Dwarf Double Red' – flowering peach
• Prunus sargentii 'JFS KW21PS' – Pink Myst Sargent's cherry
• Prunus takesimensis – Ullung-do cherry
• Prunus 'Ukon' – green-flowering cherry
• Prunus 'Umineko' – Japanese flowering cherry
• Prunus virginiana 'Canada Red' – chokecherry
• Pseudocydonia sinensis – Chinese quince
• Pseudolarix amabilis – golden larch
• Pseudolysimachion kiusianum – speedwell
• Pseudomuscari coeleste
• Pseudotsuga sinensis var. wilsoniana – Taiwan Douglas-fir
• Ptelea trifoliata – hop tree
• Ptelea trifoliata subsp. polyadenia – hop tree
• Pteris cretica 'Eco Hardy Giant' – Cretan brake fern
• Pteris cretica var. laeta 'Wu Wu' – ribbon fern
• Pterocarya rhoifolia – Japanese wingnut
• Pterocarya tonkinensis – Tonkin wingnut
• Pteroceltis tatarinowii – blue sandalwood
• Pterostyrax corymbosus 'Silver Shadow' – little epaulettetree
• Pueraria montana var. lobata 'Sherman's Ghost' – variegated kudzu
• Pulmonaria 'Silver Scimitar'
• Pulmonaria 'Spot On' – lungwort
• Pulmonaria 'Twinkle Toes' – lungwort
• Pulsatilla cernua – pasque-flower
• Pulsatilla dahurica – pasque flower
• Pulsatilla georgica – pasque flower
• Pulsatilla halleri – Haller's pasque-flower
• Pulsatilla halleri subsp. slavica – Slovak pasque flower
• Pulsatilla halleri subsp. styriaca – Steiermark pasque-flower
• Pulsatilla montana subsp. jankae – mountain anemone
• Pulsatilla patens – pasque flower
• Pulsatilla pratensis subsp. nigricans – pasqueflower
• Pulsatilla vulgaris – pasque flower
• Pulsatilla vulgaris subsp. grandis
• Pulsatilla vulgaris 'Rosen Glocke' – Rose Bells pasque flower
• Pulsatilla vulgaris 'Rote Glocke' – Red Bells pasque flower
• Punica granatum 'Agat' – pomegranate
• Punica granatum 'Blaze' – pomegranate
• Punica granatum 'Dotch Legrelley' – pomegranate
• Punica granatum (double red-white) – pomegranate
• Punica granatum 'Gosai-ryu' – pomegranate
• Punica granatum (large, double white) – pomegranate
• Punica granatum 'Loffani' – pomegranate
• Punica granatum 'Mini Frances' – dwarf pomegranate
• Punica granatum 'Phoenicia' – pomegranate
• Punica granatum 'Salavatski' – pomegranate
• Punica granatum 'State Fair' – dwarf pomegranate
• Punica granatum 'Surh-anor' – pomegranate
• Punica granatum (variegated) – variegated pomegranate
• Puschkinia scilloides 'Alba'
• Pycnanthemum flexuosum – Appalachian mountain mint
• Pycnanthemum incanum – mountain mint
• Pycnanthemum loomisii – Loomis's mountain mint
• Pycnanthemum muticum – mountain mint
• Pycnanthemum tenuifolium – mountain mint
• Pycnanthemum tenuifolium 'Campbell Carpet' – mountain mint
• Pyracantha 'Cadange' – Saphyr Orange firethorn
• Pyracantha 'Red Cushion' – firethorn
• Pyracantha (UNCC dwarf) – firethorn
• ×Pyracomeles vilmorinii – Vilmorin's pyracomeles
• Pyrenaria (compact form) – common tutcheria
• Pyrgophyllum yunnanense – Yunnan hardy dwarf ginger
• Pyrrosia
• Pyrrosia drakeana – felt fern
• Pyrrosia lingua 'Alabama Gold' – tongue fern
• Pyrrosia lingua 'Hiryu' – tongue fern
• Pyrrosia lingua 'Kei Kan' – tongue fern
• Pyrrosia lingua 'Kel Kan' – tongue fern
• Pyrrosia lingua 'Limon' – tongue fern
• Pyrrosia lingua 'Ogon Nishiki' – tongue fern
• Pyrrosia lingua 'Shishigashira' – crested tongue fern
• Pyrrosia lingua 'Tachiba Koryu' – tongue fern
• Pyrrosia polydactyla
• Pyrus 'NCPX1' – Javelin fastigiate pear
• Pyrus 'Ncpx2' – Chastity ornamental pear

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Q

• Quercus
• Quercus arizonica – Arizona white oak
• Quercus ×bimundorum 'JFS-KW1QX' – Streetspire two-worlds oak
• Quercus canbyi – Chisos oak
• Quercus dentata 'Pinnatifida' – Japanese emperor oak
• Quercus ×dysophylla – oak
• Quercus franchetii – cone oak
• Quercus germana – Mexican royal oak
• Quercus gilva
• Quercus glauca – ring-cupped oak
• Quercus glauca 'Lacera' – Japanese blue oak
• Quercus glauca 'Shima Fu' – ring-cupped oak
• Quercus greggii (La Siberia strain) – Mexican evergreen oak
• Quercus hypoleucoides – silverleaf oak
• Quercus ilex – holly oak
• Quercus infectoria subsp. veneris – Aleppo oak
• Quercus insignis – chicalaba
• Quercus 'JFS-KW2QX' – Skinny Genes oak
• Quercus longinux – Taiwan oak
• Quercus macranthera – Caucasian oak
• Quercus myrsinifolia – bamboo-leaf oak
• Quercus oblongifolia – blue oak
• Quercus oglethorpensis – Oglethorpe oak
• Quercus palustris 'Pringreen' – Green Pillar columnar pin oak
• Quercus phellos – willow oak
• Quercus phillyreoides – Ubame oak
• Quercus phillyreoides 'Emerald Sentinel' – Ubame oak
• Quercus polymorpha – Monterrey oak
• Quercus pontica – Armenian oak
• Quercus pubescens – downy oak
• Quercus pungens – sandpaper oak
• Quercus robur 'Argenteomarginata' – English oak
• Quercus rugosa – netleaf oak
• Quercus rysophylla – loquat-leaf oak
• Quercus salicina – willow-leaf oak
• Quercus sartorii – Sartor's oak
• Quercus schottkyana
• Quercus serrata – Konara oak
• Quercus serrata 'Variegata' – variegated Konara oak
• Quercus sessilifolia – cloud-mountain evergreen oak
• Quercus shumardii – Shumard oak
• Quercus sinuata – Durand oak
• Quercus stellata – post oak
• Quercus tarahumara – handbasin oak
• Quercus tarokoensis – Taroko oak
• Quercus turbinella – Sonoran scrub oak
• Quercus ×undulata 'Tinnie'
• Quercus variabilis – Chinese cork oak
• Quercus virginiana – live oak
• Quercus virginiana (variegated) – southern live oak
• Quercus ×warei 'Birthday Candle' – Ware's oak
• Quercus ×warei 'Chimney Fire' – columnar hybrid oak
• Quercus ×warei 'Nadler' – Kindred Spirit oak
• Quercus wutaishanica – Liaoning oak
• Quillaja saponaria – soapbark

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R

• Rabiea albipuncta
• Ratibida pinnata – yellow coneflower
• Rehmannia piasezkii – beverly bells
• Reineckea
• Reineckea carnea – Chinese lucky grass
• Reineckea carnea 'Crug's Broadleaf' – Chinese lucky grass
• Reineckea carnea 'Emei Snow' – Chinese lucky grass
• Reineckea incurva 'Crug's Linearleaf' – ribbon lily
• Remusatia vivipara
• Rhamnus yoshinoi – buckthorn
• Rhaphiolepis indica 'Conda' – Rosalinda Indian hawthorn
• Rhaphiolepis indica 'Conor' – Eleanor Tabor Indian hawthorn
• Rhaphiolepis indica var. tashiroi – Indian hawthorn
• Rhaphiolepis umbellata 'Blueberry Muffin' – Yeddo hawthorn
• Rhaphiolepis umbellata 'Rutrhaph1' – Southern Moon Yeddo hawthorn
• Rhapidophyllum hystrix – needle palm
• Rhodanthemum hosmariense
• Rhododendron – rhododendron
• Rhododendron 'Alaska' – indica hybrid azalea
• Rhododendron 'Alexander' – North Tisbury hybrid azalea
• Rhododendron 'Arneson Gem' – deciduous azalea
• Rhododendron 'Aromi Sunnyside Up' – Aromi hybrid deciduous azalea
• Rhododendron atlanticum 'Winterthur' – coastal azalea
• Rhododendron austrinum 'Alba' – white-flowered Florida flame azalea
• Rhododendron austrinum 'Hotspur Yellow' – Exbury hybrid azalea
• Rhododendron austrinum 'Lisa's Gold' – Florida flame azalea
• Rhododendron austrinum (yellow no. 3)
• Rhododendron 'AZ 35' – Deja Bloom Pink Ribbons reblooming azalea
• Rhododendron (azalea)
• Rhododendron ×bakeri 'Clyo Red' – Baker's azalea
• Rhododendron 'Camilla's Blush' – Piedmont azalea
• Rhododendron canescens 'Varnadoe's Phlox Pink' – piedmont azalea
• Rhododendron 'Cayenne Capers' – Aromi deciduous azalea
• Rhododendron 'Chapmanii Wonder' – hybrid rhododendron
• Rhododendron 'Chionoides' – hybrid rhododendron
• Rhododendron 'Congo' – Robin Hill azalea
• Rhododendron 'Conlef' – Autumn Cheer re-blooming azalea
• Rhododendron ('Conversation Piece' witch's broom) – hybrid azalea
• Rhododendron 'Cotton Candy' – azalea
• Rhododendron 'Dark Lord'
• Rhododendron flammeum 'Early Red Flame' – Oconee azalea
• Rhododendron formosanum – Taiwan rhododendron
• Rhododendron 'Fragrant Affinity' – fragrant azaleodendron
• Rhododendron 'Garden Rainbow' – deciduous azalea
• Rhododendron 'Gulf Shore' – azalea
• Rhododendron 'HoldenRhodo201'
• Rhododendron 'HoldenRhodo212'
• Rhododendron 'HoldenRhodo213'
• Rhododendron 'HoldenRhodo221'
• Rhododendron (Huang 1-3-16) – azalea
• Rhododendron hypoblematosum – downy backed azalea
• Rhododendron 'Jane's Gold' – Aromi hybrid azalea
• Rhododendron 'JBG 19-006' – Déjà Bloom Smitten azalea
• Rhododendron keiskei – hikage tutuji
• Rhododendron 'Ken Janeck' – yak rhododendron
• Rhododendron kiangsiense – Jiangxi rhododendron
• Rhododendron 'King's Trumpeter' – Aromi hybrid azalea
• Rhododendron 'Koromo White' – Kurume azalea
• Rhododendron 'Kumo-no-ito' – Kurume hybrid azalea
• Rhododendron 'Late Love' – North Tisbury hybrid azalea
• Rhododendron 'Lemon Lights' – deciduous azalea
• Rhododendron liliiflorum – lily azalea
• Rhododendron 'Lisenne Rockefeller' – Southgate Divine rhododendron
• Rhododendron 'Liz Colbert' – Aromi hybrid azalea
• Rhododendron makinoi × R. pachysanthum – hybrid rhododendron
• Rhododendron 'Mandarin Lights' – deciduous azalea
• Rhododendron mariesii – rhododendron
• Rhododendron 'Michael Hill' – North Tisbury azalea
• Rhododendron micranthum – Manchurian rhododendron
• Rhododendron minus 'Southern Cerise' – Piedmont rhododendron
• Rhododendron mucronulatum – Korean rhododendron
• Rhododendron 'NCRX1' – Dandy Man Color Wheel rhododendron
• Rhododendron 'NCRX11' – Perfecto Mundo Pink Carpet reblooming azalea
• Rhododendron 'NCRX12' – Perfecto Mundo Fuchsia Carpet reblooming azalea
• Rhododendron 'NCRX2' – Black Hat rhododendron
• Rhododendron 'NCRX3' – Perfecto Mundo Double Pink reblooming azalea
• Rhododendron 'NCRX4' – Perfecto Mundo Double Purple reblooming azalea
• Rhododendron 'NCRX5' – Perfecto Mundo Double White reblooming azalea
• Rhododendron 'NCRX6' – Perfecto Mundo Orange reblooming azalea
• Rhododendron 'NCRX9' – Perfecto Mundo Epic Pink reblooming azalea
• Rhododendron 'Nishiki' – variegated satsuki azalea
• Rhododendron nudipes
• Rhododendron oldhamii – Oldham's azalea
• Rhododendron (oldhamii × rubropilosum) – hybrid Taiwan azalea
• Rhododendron ovatum
• Rhododendron 'Pink Camellia' – Carla hybrid azalea
• Rhododendron 'Pink Pancake' – North Tisbury hybrid azalea
• Rhododendron ×pulchrum (Matsuda gold) – hybrid azalea
• Rhododendron 'Red Demon' – deciduous azalea
• Rhododendron 'Rlh1-11p1' – Bloom-a-thon Hot Pink azalea
• Rhododendron 'RLH1-15P3' – White Nobility / Bloom-A-Thon Pearl reblooming azalea
• Rhododendron 'Rlh1-3p3' – Bloom-A-Thon White azalea
• Rhododendron 'Roblez' – Encore Autumn Fire reblooming azalea
• Rhododendron sichotense – Siberian alpenrose
• Rhododendron 'Silver Skies'
• Rhododendron 'Southern Belle' – Rutherfordiana hybrid azalea
• Rhododendron 'Summer Snowball' – Aromi white flowered azalea
• Rhododendron (tiny creeper) – rock garden rhododendron
• Rhododendron (tiny leaves)
• Rhododendron 'Twilight Pink'
• Rhododendron 'Twinkles' – Glenn Dale azalea
• Rhododendron 'Tyler Morris' – Southgate Radiance rhododendron
• Rhododendron uwaense
• Rhododendron (variegated pink)
• Rhododendron 'White Lights' – deciduous azalea
• Rhododendron yakushimanum × crinigerum
• Rhodoleia – rose hazel
• Rhodoleia championii 'Winter Champion' – rose hazel
• Rhodoleia henryi 'Takeshitasei' – evergreen rose hazel
• Rhodophiala bagnoldii
• Rhodophiala (carmine pink form)
• Rhus aromatica 'Gro-low' – dwarf fragrant sumac
• Rhus copallinum var. latifolia 'Lanham Purple' – winged sumac
• Rhus montana
• Rhynchospora colorata – white-top sedge
• Rhynchospora latifolia – whitetop sedge
• Robinia pseudoacacia 'Lace Lady' – Twisty Baby contorted black locust
• Rohdea chinensis – Chinese sacred lily
• Rohdea chinensis var. chinensis 'Green Panda' – Chinese sacred lily
• Rohdea japonica – sacred lily
• Rohdea japonica 'Chirimen Boshi' – sacred lily
• Rohdea japonica 'Chiyoda Nishiki' – sacred lily
• Rohdea japonica 'Eco Dwarf Pinto' – sacred lily
• Rohdea japonica 'Fuji-no-yuki' – sacred lily
• Rohdea japonica 'Fukuju Kan' – sacred lily
• Rohdea japonica 'Galle' – sacred lily
• Rohdea japonica 'Go Dai Takane' – sacred lily
• Rohdea japonica 'Gunjaku' – sacred lily
• Rohdea japonica (Hawksridge No. 7) – sacred lily
• Rohdea japonica 'Herbie' – sacred lily
• Rohdea japonica 'Kin Cho Ju' – sacred lily
• Rohdea japonica 'Kinshu-no-matsu' – sacred lily
• Rohdea japonica 'Kirishima' – sacred lily
• Rohdea japonica 'Miho-no-matsu' – sacred lily
• Rohdea japonica 'Miyako-no-hana' – sacred lily
• Rohdea japonica 'Mure Suzume' – sacred lily
• Rohdea japonica (narrow leaf variegated) – sacred lily
• Rohdea japonica 'Nobori ryu' – sacred lily
• Rohdea japonica 'Picadilly Pace' – sacred lily
• Rohdea japonica 'Sekkei Nishiki' – sacred lily
• Rohdea japonica 'Shiro Botan' – sacred lily
• Rohdea japonica 'Shishi' – sacred lily
• Rohdea japonica 'Souryujishi' – sacred lily
• Rohdea japonica 'Taishu' – sacred lily
• Rohdea japonica 'Taiyoden' – sacred lily
• Rohdea japonica (variegated sport) – sacred lily
• Rohdea japonica 'Washit Aka Kuma' – sacred lily
• Rohdea japonica (white margin) – sacred lily
• Rohdea japonica 'Wrath of Kan' – sacred lily
• Rohdea japonica 'Yattazu Yan Jaku' – sacred lily
• Rohdea japonica 'Yoroi-Kaku-no-matsu' – sacred lily
• Rohdea pachynema – spreading sacred lily
• Rohdea (sp. nova Chen Yi)
• Rohdea aff. tonkinensis
• Rohdea urotepala
• Rohdea wattii
• Romneya coulteri – Coulter's Matilija poppy
• Rosa 'Ausbaker' – Teasing Georgia climbing rose
• Rosa 'Ausbemard' – Munstead Wood shrub rose
• Rosa 'Ausblanket' – Wollerton Old Hall shrub rose
• Rosa 'Auscanary' – Malvern Hills rambling rose
• Rosa 'Ausdecorum' – Darcey Bussell shrub rose
• Rosa 'Ausland' – Scepter'd Isle shrub rose
• Rosa 'Auslot' – Sophy's Rose shrub rose
• Rosa 'Ausnyson' – Lady of Shalott shrub rose
• Rosa 'Ausprior' – Claire Austin shrub-climbing rose
• Rosa 'Auswinter' – Crown Princess Margareta climbing English rose
• Rosa 'BAIark' – Easy Elegance Como Park shrub rose
• Rosa 'BAIbox' – Easy Elegance Music Box shrub rose
• Rosa 'BAIcham' – Easy Elegance Champagne Wishes shrub rose
• Rosa 'BAIeels' – Easy Elegance Head Over Heels shrub rose
• Rosa 'BAIface' – Easy Elegance Funny Face shrub rose
• Rosa 'BAIfairy' – Easy Elegance Mystic Fairy shrub rose
• Rosa 'BAIgirl' – Easy Elegance My Girl shrub rose
• Rosa 'BAIief' – Easy Elegance Little Mischief shrub rose
• Rosa 'BAIine' – Easy Elegance Yellow Submarine shrub rose
• Rosa 'BAIing' – Easy Elegance Grandma's Blessing shrub rose
• Rosa 'BAIllim' – Easy Elegance Chi shrub rose
• Rosa 'BAImir' – Easy Elegance Kashmir shrub rose
• Rosa 'BAIneon' – Easy Elegance Screaming Neon Red shrub rose
• Rosa 'BAIrage' – Easy Elegance All the Rage shrub rose
• Rosa 'BAIrift' – Easy Elegance Snowdrift shrub rose
• Rosa 'BAIsme' – Easy Elegance Kiss Me shrub rose
• Rosa 'BAIsuhe' – Easy Elegance Super Hero shrub rose
• Rosa 'BAItown' – Easy Elegance Paint the Town shrub rose
• Rosa 'BAIypso' – Easy Elegance Calypso shrub rose
• Rosa 'Blanc Double de Courbet' – shrub rose
• Rosa 'BUCbi' – Carefree Beauty shrub rose
• Rosa 'Ca 29' – First Editions Campfire shrub rose
• Rosa 'Céline Forestier' – Noisette rose
• Rosa 'ChewDelight' – Ringo Double Pink shrub rose
• Rosa 'ChewPatout' – Oso Easy Urban Legend shrub rose
• Rosa 'Coral Dawn' – climbing rose
• Rosa 'Darlow's Enigma' – rambling rose
• Rosa 'Dorient' – Melody Parfumee grandiflora rose
• Rosa 'Dr. Huey' – climbing rose
• Rosa 'Frycentury' – Day Breaker floribunda rose
• Rosa 'Golden Showers' – climbing rose
• Rosa 'Horcogjil' – At Last floribunda rose
• Rosa 'KORpucoblu' – Quicksilver Arborose climbing rose
• Rosa 'Kortersen' – Rosarium Uetersen climbing rose
• Rosa 'Lamarque' – Noissette rose
• Rosa 'Meibenbino' – Petite Knock Out dwarf shrub rose
• Rosa 'Meigalpio' – Red Drift ground cover rose
• Rosa 'Meigekanu' – Sevillana shrub rose
• Rosa 'Meiggili' – Peach Drift ground cover rose
• Rosa 'Meiguimov' – The Charlatan shrub rose
• Rosa 'Meikaquinz' – Romantica Moonlight hybrid tea rose
• Rosa 'Meimirrot' – Apricot Drift rose
• Rosa 'Meinostair'
• Rosa 'Meipapey'
• Rosa 'Meipeporia' – Oso Easy Double Red shrub rose
• Rosa 'Meiroguste'
• Rosa 'Meiswetdom' – Sweet Drift ground cover rose
• Rosa 'Miracle on the Hudson' – shrub rose
• Rosa 'Moje Hammarberg' – rugosa rose
• Rosa 'Novarospop' – Popcorn Drift ground cover rose
• Rosa ×odorata 'Mutabilis' – Seven-sisters Rose
• Rosa 'Orange Triumph, Climbing' – climbing polyantha rose
• Rosa 'Peggy Martin' – climbing rose
• Rosa 'Phyllis Sherman' – Oso Easy Peasy shrub rose
• Rosa 'Radclean' – Cloud 10 climbing rose
• Rosa 'Radprov' – Orchid Romance floribunda rose
• Rosa 'RADramblin' – First Editions Ramblin' Red climbing rose
• Rosa 'Radsun' – Carefree Sunshine shrub rose
• Rosa 'Radsunny' – Sunny Knock Out shrub rose
• Rosa 'Radtreasure' – Tahitian Treasure grandiflora rose
• Rosa 'Radwin' – Winners Circle climbing rose
• Rosa rugosa 'BOC rogosnif' – Lotty's Love rugosa rose
• Rosa 'Setina' – climbing Bourbon rose
• Rosa 'Sombreuil' – climbing rose
• Rosa 'Spice' – China rose
• Rosa 'Sprothrive' – Thrive! shrub rose
• Rosa 'Wild Thing' – shrub rose
• Rosa 'ZLEeltonStrack' – First Editions Above and Beyond climbing rose
• Rosmarinus officinalis 'Barbeque' – upright rosemary
• Rosmarinus officinalis 'Renzels'
• Rosmarinus officinalis 'Roman Beauty' – Chef's Choice rosemary
• Rosmarinus officinalis 'Spice Island' – rosemary
• Rostrinucula dependens – weeping buddleja
• Rosularia chrysantha
• Rubus buergeri – common creeping rubus
• Rubus rolfei – creeping raspberry
• Rudbeckia 'American Gold Rush' – yellow coneflower
• Rudbeckia auriculata – eared perennial black-eyed Susan
• Rudbeckia heliopsidis – sunfacing coneflower
• Rudbeckia maxima – great coneflower
• Rudbeckia subtomentosa 'Little Henry' – sweet coneflower
• Ruellia caroliniensis – Carolina wild petunia
• Ruellia elegans 'Ragin' Cajun' – false petunia
• Ruellia 'Humility'
• Ruellia simplex 'Chi Chi' – false petunia
• Ruscus aculeatus – butcher's broom
• Ruscus aculeatus var. angustifolius – narrow-leaved butcher's broom
• Ruscus aculeatus 'Elizabeth Lawrence' – butcher's broom
• Ruscus aculeatus (Majorca form) – butcher's broom
• Ruscus aculeatus var. platyphyllus – butcher's broom
• Ruscus aculeatus 'Wheeler's' – Wheeler’s butcher’s broom
• Ruscus hypophyllum – spineless butcher's broom
• Ruscus ×microglossus – butcher's broom
• Ruta graveolens

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S

• Sabal – palm
• Sabal 'Birmingham' – palmetto palm
• Sabal 'Blackburniana' – palmetto palm
• Sabal ×brazoriensis – hybrid palmetto
• Sabal etonia – scrub palmetto
• Sabal mexicana – Texas palm
• Sabal minor – dwarf palmetto
• Sabal minor 'Chipola Dwarf' – dwarf palmetto
• Sabal minor var. louisiana – dwarf palmetto
• Sabal minor (McCurtain County, OK) – dwarf palmetto
• Sabal minor (Talledega County) – dwarf palmetto
• Sabal minor (Wakulla dwarf) – dwarf palmetto
• Sabal palmetto – cabbage palmetto
• Sabal palmetto (Kinston form)
• Sabal uresana – Sonoran palmetto
• Saccharum angustifolium – wild sugarcane
• Saccharum ravennae – Ravenna grass
• Salix acutifolia 'Blue Streak' – Caspian willow
• Salix bonplandiana (fastigate hardy form)
• Salix 'Flame' – red-stem willow
• Salix humilis (NW GA form)
• Salix humilis var. tristis – prairie willow
• Salvia 'Alegria' – hybrid sage
• Salvia 'Amistad' – hybrid sage
• Salvia amplexicaulis
• Salvia atropatana
• Salvia 'Azure Snow' – flowering sage
• Salvia azurea 'Little Boy Blue' – Blue Sage
• Salvia 'Back to the Fuchsia' – salvia
• Salvia 'Balsalmispim'
• Salvia 'BBSAL00301'
• Salvia 'BBSAL09001'
• Salvia 'Big Swing' – flowering sage
• Salvia 'Blue by You' – sage
• Salvia bucharica – Bukharan sage
• Salvia canariensis – Canary Island sage
• Salvia chamaedryoides – germander sage
• Salvia 'Cherry Chief' – hybrid sage
• Salvia 'Dark Dancer' – hybrid sage
• Salvia dichlamys 'Super Elk' – scarlet rooster sage
• Salvia dichroantha – kutnu
• Salvia digitaloides
• Salvia 'Eggben002' – Heatwave Blast hybrid Autumn sage
• Salvia elegans 'Golden Delicious' – golden pineapple sage
• Salvia engelmannii – Engelmann's sage
• Salvia (ex. 'BBSAL09001' Rockin' Deep Purple) – anise sage
• Salvia (ex. 'Church Road') – sage
• Salvia farinacea 'Augusta Duelberg' – mealycup sage
• Salvia farinacea (Blue Bedder strain) – mealycup sage
• Salvia farinacea (ex. 'Augusta Duelberg') – mealycup sage
• Salvia farinacea 'G14251' – Unplugged So Blue mealycup sage
• Salvia farinacea 'Henry Duelberg' – mealycup sage
• Salvia 'Flamenco Rose' – hybrid sage
• Salvia 'G14-325'
• Salvia glabrescens 'Elk Yellow Purple' – Japanese forest sage
• Salvia greggii – autumn sage
• Salvia greggii 'Balmirleu' – Mirage Blue autumn sage
• Salvia greggii 'Balmirrobi' – Mirage Rose Bicolor autumn sage
• Salvia greggii 'Diane' – autumn sage
• Salvia greggii (ex. 'Diane') – autumn sage
• Salvia greggii 'Flame' – autumn sage
• Salvia greggii 'Holy Queen' – sage
• Salvia greggii 'Lipstick' – autumn sage
• Salvia greggii 'Navajo White' – autumn sage
• Salvia greggii 'Rfd-S016' – Navajo Salmon Red autumn sage
• Salvia greggii 'Sky Blue Pink' – autumn sage
• Salvia greggii 'Teresa' – autumn sage
• Salvia greggii 'Texas Wedding' – autumn sage
• Salvia greggii 'Wild Thing' – autumn sage
• Salvia guaranitica – blue anise sage
• Salvia guaranitica 'Argentine Skies' – blue anise sage
• Salvia guaranitica 'Black and Bloom' – blue anise sage
• Salvia guaranitica 'Black and Blue' – blue anise sage
• Salvia henryi
• Salvia hians
• Salvia hierosolymitana – Jerusalem salvia
• Salvia hydrangea
• Salvia ×jamensis 'Maraschino' – hybrid sage
• Salvia leucantha 'Greenwood' – Mexican bush sage
• Salvia leucantha 'Santa Barbara' – Mexican bush sage
• Salvia lyrata 'Sangria' – purple lyre-leaf sage
• Salvia mexicana 'Lollie Jackson' – Mexican sage
• Salvia microphylla 'Hot Lips' – littleleaf sage
• Salvia microphylla 'Red Velvet' – littleleaf sage
• Salvia microphylla 'San Carlos Festival' – littleleaf sage
• Salvia microphylla 'Wild Watermelon' – littleleaf sage
• Salvia microphylla 'Zaragoza' – littleleaf sage
• Salvia miltiorrhiza
• Salvia 'Moulin Rouge' – garden sage
• Salvia
• Salvia nemorosa – woodland sage
• Salvia nemorosa 'Bumblesnow' – woodland sage
• Salvia 'Newe Ya'ar' – silver sage
• Salvia nipponica – Japanese woodland sage
• Salvia nipponica var. formosana – Taiwan woodland sage
• Salvia nubicola
• Salvia oxyphora – Bolivian sage
• Salvia 'PAS1246577' – Big Blue hybrid salvia
• Salvia 'Plum Wine'
• Salvia 'Pozo Blue' – gray musk sage
• Salvia procurrens – blue creeper sage
• Salvia puberula 'El Butano' – Mexican sage
• Salvia 'Raspberry Delight' – sage
• Salvia 'Red Letter' – hybrid autumn sage
• Salvia regla 'Jame' – mountain sage
• Salvia regla (Queretaro) – mountain sage
• Salvia 'Rfd2013-001' – sage
• Salvia 'Roman Red'
• Salvia 'Silke's Dream' – hybrid salvia
• Salvia ×sylvestris 'Bocofpea' – Feathers Peacock woodland sage
• Salvia transcaucasia 'Alba'
• Salvia 'WNSVUPPK' – Unplugged Pink sage
• Sambucus canadensis 'Blonde Envy' – American elder
• Sambucus javanica – Chinese elder
• Sanguisorba hakusanensis – Korean mountain burnet
• Sanguisorba 'Little Angel'
• Sanguisorba officinalis 'Tanna' – greater burnet
• Santolina neapolitana – Naples lavender cotton
• Sapindus mukorossi – Chinese soapberry
• Saponaria cypria
• Sarcandra
• Sarcandra glabra – bone knitted lotus
• Sarcococca – sweet box
• Sarcococca bleddynii (ex.)
• Sarcococca confusa – sweet box
• Sarcococca confusa 'Western Hills' – Himalayan sweet box
• Sarcococca aff. coriacea
• Sarcococca hookeriana – sweet box
• Sarcococca hookeriana var. digyna – Himalayan sweet box
• Sarcococca hookeriana var. digyna 'Sarsid1' – Fragrant Valley Himalayan sweet box
• Sarcococca hookeriana var. digyna 'Sarsid2' – Fragrant Mountain Himalayan sweet box
• Sarcococca hookeriana 'Purplerij1' – Sweet & Lo sweet box
• Sarcococca orientalis – sweetbox
• Sarcococca orientalis (Cistus form) – sweetbox
• Sarcococca ruscifolia – fragrant sweetbox
• Sarcococca ruscifolia var. chinensis 'Dragon Gate' – fragrant sweetbox
• Sarcococca saligna – willow-leaf sweetbox
• Saruma henryi
• Sassafras albidum – sassafras
• Sassafras tzumu – Chinese sassafras
• Sauromatum giganteum
• Sauromatum horsfieldii 'Lancelot' – Horsefield's voodoo lily
• Sauromatum venosum – voodoo lily
• Sauromatum venosum 'Indian Giant' – voodoo lily
• Saxifraga cortusifolia (murasaki)
• Saxifraga stolonifera 'Aurea' – strawberry geranium
• Saxifraga stolonifera 'Hope's Wine' – strawberry begonia
• Saxifraga stolonifera 'Nezu Jinja' – large-leaf strawberry begonia
• Scabiosa 'Balfluttropi' – Flutter Rose Pink pincushion flower
• Scabiosa owerinii
• Schima khasiana – Khasi schima
• Schima wallichii – Chinese guger
• ×Schimlinia floribunda 'Shima Lina Ding Dong' – mountain schimlinia
• Schisandra chinensis 'Eastern Prince' – magnolia vine
• Schisandra incarnata – magnolia vine
• Schisandra propinqua
• Schisandra propinqua subsp. sinensis – magnolia vine
• Schisandra repanda
• Schizachyrium scoparium 'Carousel' – little bluestem
• Schizachyrium scoparium 'Chameleon' – little bluestem
• Schizachyrium scoparium 'Ha Ha Tonka' – little bluestem
• Schizachyrium scoparium var. scoparium 'The Blues' – little bluestem
• Schizachyrium scoparium 'Standing Ovation' – little bluestem
• Schizachyrium 'Smoke Signal' – little bluestem
• Sciadopitys verticillata – Japanese umbrella pine
• Scilla bifolia – alpine squill
• Scilla bifolia 'Rosea' – alpine squill
• Scilla hyacinthoides – hyacinth squill
• Scilla hyacinthoides 'Blue Arrow' – hyacinth squill
• Scilla litardierei
• Scilla mischtschenkoana – Tubergen squill
• Scilla numidica – Numidian squill
• Scilla peruviana – Portuguese squill
• Scilla peruviana 'White Moon' – peruvian lily
• Scilla siberica – wood squill
• Scilla siberica 'Alba' – wood squill
• Scutellaria alpina 'Arcobaleno' – Alpine skullcap
• Scutellaria diffusa
• Scutellaria mellichampii 'Bluffton Blues' – skullcap
• Scutellaria orientalis – yellow-flowered skullcap
• Scutellaria ovata – heartleaf skullcap
• Scutellaria (sp. zhongdianensis) – skullcap
• Scutellaria suffrutescens 'Texas Rose' – cherry skullcap
• Searsia dentata
• Sedum – stonecrop
• Sedum diffusum
• Sedum ellacombianum 'Cutting Edge' – variegated stonecrop
• Sedum emarginatum 'Eco-Mt. Emei' – Mt. Emei sedum
• Sedum 'Lime Zinger' – SunSparkler hybrid stonecrop
• Sedum lineare 'Variegatum' – variegated carpet sedum
• Sedum 'Little Miss Sunshine'
• Sedum moranense subsp. grandiflorum – red stonecrop
• Sedum aff. nevii 'Macon It Big'
• Sedum 'Noniw' – Moonshadow golden stonecrop
• Sedum sexangulare – tasteless stonecrop
• Sedum (Sweet Tea mix)
• Sedum tetractinum – Chinese sedum
• Seemannia 'Little Red' – hardy gloxinia
• Seemannia nematanthodes 'Evita' – hardy gloxinia
• Seemannia purpurascens 'Purple Prince' – hardy gloxinia
• Selaginella braunii – arborvitae fern
• Selaginella pallescens – pale spikemoss
• Semiaquilegia adoxoides – miniature false columbine
• Sempervivum 'Amanda' – hens and chicks
• Sempervivum – Chick Charms Giants Copper Canyon hens and chicks
• Sempervivum – Chick Charms Giants Gold Mine hens and chicks
• Sempervivum 'Fire Bird' – hens and chicks
• Sempervivum – Supersemp Rose Quartz hens and chicks
• Senegalia anisophylla
• Senegalia bonariensis – cat's claw tree
• Senna corymbosa – Argentine senna
• Sequoia sempervirens – coastal redwood
• Sequoia sempervirens 'Adpressa' – coastal redwood
• Sequoia sempervirens 'Henderson Blue' – blue coastal redwood
• Sequoia sempervirens 'Soquel' – coastal redwood
• Sequoia sempervirens 'Swarthmore Hardy' – coastal redwood
• Serissa japonica – snowbush
• Serissa japonica 'Apple Blossom' – snowbush
• Serissa japonica 'Bumble Bee Delight' – snowbush
• Serissa japonica (dwarf pink) – dwarf snowbush
• Serissa japonica 'Kowloon' – snowbush
• Serissa japonica 'Kyoto' – snowbush
• Serissa japonica 'Sapporo' – snowbush
• Serissa japonica 'White Swan' – snowbush
• Seseli gummiferum – moon carrot
• Setaria palmifolia – palm grass
• Sideroxylon alachuense – Clark's buckthorn
• Silene caroliniana subsp. wherryi 'Short and Sweet' – Wherry's catchfly
• Silene chungtienensis – Shangri-La campion
• Silene hayekiana
• Silene linnaeana – Linnaean catchfly
• Silene paradoxa – campion
• Silene pendula – catchfly
• Silene 'Streaker' – catchfly
• Silene uniflora subsp. prostrata – sea campion
• Silene yunnanensis – Chinese catchfly
• Silphium albiflorum
• Silphium asteriscus – starry rosinweed
• Silphium gracile – slender rosinweed
• Silphium perfoliatum – cup plant
• Silphium perfoliatum 'The Holy Grail' – cup plant
• Silphium simpsonii – Simpson's rosinweed
• Silphium terebinthinaceum – prairie rosinweed
• Silphium wasiotense – Appalachian rosinweed
• Sinningia 'Apricot Bouquet' – hardy gloxinia
• Sinningia 'Arkansas Bells' – hardy gloxinia
• Sinningia 'Bananas Foster' – hardy gloxinia
• Sinningia 'Butter and Cream' – hardy gloxinia
• Sinningia 'Candy Corn' – hardy gloxinia
• Sinningia 'Carolyn' – hardy gloxinia
• Sinningia 'Cherries Jubilee' – hardy gloxinia
• Sinningia eumorpha – hardy gloxinia
• Sinningia 'Lovely' – hardy gloxinia
• Sinningia macrostachya × S. 'Georgia Sunset'
• Sinningia 'Scarlet O'Hara' – hardy gloxinia
• Sinningia sellovii – hardy red gloxinia
• Sinningia tubiflora – hardy white gloxinia
• Sinojackia rehderiana – jacktree
• Sinojackia xylocarpa 'La Grima' – jacktree
• Sisyrinchium – blue-eyed grass
• Sisyrinchium angustifolium 'Lucerne' – narrowleaf blue-eyed grass
• Sisyrinchium californicum – yellow eyed grass
• Sisyrinchium chilense – white eyed grass
• Sisyrinchium micranthum – blue pigroot
• Sisyrinchium palmifolium – palm-leaf yellow-eyed grass
• Smilax china (variegated)
• Solanum pseudocapsicum – Jerusalem cherry
• Solidago faucibus – gorge goldenrod
• Solidago rugosa 'Fireworks' – rough goldenrod
• Solidago shortii 'Solar Cascade' – Short's goldenrod
• Solidago cf. stricta – wand goldenrod
• Solidago 'Wichita Mountains' – goldenrod
• Sophora davidii – David's mountain laurel
• Sophora aff. davidii – David's mountain laurel
• Sophora flavescens
• Sophora flavescens var. angustifolia – sophora
• Sorbus cf. alnifolia
• Sorbus dunnii – Chinese mountainash
• Sorbus 'Eastern Promise' – mountain ash
• Sorbus keissleri – Keissler mountain ash
• Sorghastrum nutans 'Indian Steel' – golden feather grass
• Spartina bakeri – sand cordgrass
• Spathicarpa hastifolia
• Speirantha gardenii – false lily-of-the-valley
• Spigelia gentianoides var. alabamensis – Alabama pinkroot
• Spigelia marilandica – Indian pink
• Spigelia marilandica 'Ragin Cajun' – Indian pink
• Spiraea ×bumalda 'Bl0601' – Little Bonnie compact Japanese spirea
• Spiraea ×bumalda 'Monby' – Limemound Japanese spirea
• Spiraea ×cinerea 'Grefsheim' – garland spiraea
• Spiraea (CP 11 DS 437)
• Spiraea crenata – scalloped spirea
• Spiraea henryi – Henry's spirea
• Spiraea japonica 'Abigail' – Japanese spirea
• Spiraea japonica 'Flaming Mound' – Japanese spirea
• Spiraea japonica 'Golden Elf' – Japanese spirea
• Spiraea japonica 'Lemon Princess' – Japanese spirea
• Spiraea japonica 'NCSX1' – Double Play Candy Corn Japanese spiraea
• Spiraea japonica 'NCSX2' – Double Play Doozie Japanese spiraea
• Spiraea japonica 'Rebum' – Japanese spirea
• Spiraea japonica 'Shibori' – Japanese spirea
• Spiraea japonica 'SMNSJMFR' – Double Play Red Japanese spirea
• Spiraea japonica 'Thumbelina' – Japanese spirea
• Spiraea japonica 'White Gold' – Japanese spirea
• Spiraea media – Russian spirea
• Spiraea miyabei – Miyabe spirea
• Spiraea nipponica 'VERSPI 1' – Golden Glitter variegated spirea
• Spiraea thunbergii 'Fujino Pink' – apple-blossom Thunberg spirea
• Spiraea thunbergii 'Mount Fuji' – variegated Thunberg spirea
• Spiraea thunbergii 'Ogon' – Mellow Yellow golden Thunberg spirea
• Spiraea ×vanhouttei 'Catpan' – Pink Ice bridal wreath spirea
• Spiraea ×vanhouttei 'Levgold' – Firegold bridal wreath spirea
• Sporobolus heterolepis 'Gone with the Wind' – prairie dropseed
• Sporobolus wrightii – sacaton
• Sporobolus wrightii 'Windbreaker' – sacaton
• Sprekelia formosissima – Aztec lily
• Sprekelia 'Lowe Down' – hybrid Aztec lily
• Stachys byzantina – lamb's ears
• Stachys germanica – downy woundwort
• Stachys 'Hummelo' – betony
• Stachys lavandulifolia – wood betony
• Stachys officinalis 'Rich Pink' – wood betony
• Stachys sieboldii – Chinese Artichoke
• Stachys spathulata
• Stachys 'Summer Romance' – betony
• Stachyurus 'Carolina Parakeet' – variegated spike-tail
• Stachyurus chinensis – Chinese spike-tail
• Stachyurus chinensis 'Golden Joy' – chinese spike tail
• Stachyurus himalaicus – spike-tail
• Stachyurus praecox 'Aurea Variegata' – spike-tail
• Stachyurus praecox 'Aureovariegata' – spike-tail
• Stachyurus praecox 'Dyan' – spike-tail
• Stachyurus praecox 'Issai' – spike-tail
• Stachyurus praecox 'Yoharu' – spike-tail
• Stachyurus salicifolius – willow leaf spike-tail
• Stachyurus sigeyosii – spike-tail
• Stanleya pinnata – desert princesplume
• Stauntonia – sausage vine
• Stauntonia hexaphylla – Japanese stauntonia
• Stauntonia hexaphylla 'Cartwheel' – variegated Japanese stauntonia
• Stauntonia latifolia – sausage vine
• Stauntonia (yellow fruit)
• Steironema lanceolatum – lanceleaf loosetrife
• Stenocactus coptonogonus
• Sternbergia greuteriana
• Sternbergia lutea – winter daffodil
• Sternbergia sicula
• Stewartia koreana 'Lindstrom's Weeping' – Korean stewartia
• Stewartia pseudocamellia (variegated) – Japanese stewartia
• Stewartia rostrata – beaked Stewartia
• Stewartia rostrata 'Gold Spring' – beaked Stewartia
• Stewartia sinensis var. brevicalyx – Chinese stewartia
• Stewartia sinensis var. sinensis – Chinese stewartia
• Stewartia 'Yellow Column' – stewartia
• Stipa lessingiana 'Capriccio' – feather grass
• Stipa neaei – feather grass
• Stokesia laevis – Stokes' aster
• Stokesia laevis 'Colorwheel' – Stokes' aster
• Stokesia laevis 'Honeysong Purple' – Stokes' aster
• Stokesia laevis 'Mary Gregory' – Stokes' aster
• Styphnolobium affine – Eve's necklace
• Styrax confusus – Chinese snowbell
• Styrax aff. dasyanthus
• Styrax formosanus – Formosan snowbell
• Styrax japonicus 'Burgundy Moon' – Japanese snowbell
• Styrax japonicus (contorted) – Japanese snowbell
• Styrax japonicus 'Crystal' – Japanese snowbell
• Styrax japonicus 'Emerald Pagoda' – Japanese snowbell
• Styrax japonicus 'Evening Light' – Japanese snowbell
• Styrax japonicus 'Fargesii' – Japanese snowbell
• Styrax japonicus 'Fragrant Fountain' – Japanese snowbell
• Styrax japonicus 'Issai' – Japanese snowbell
• Styrax japonicus 'JFS 6SJ' – Nightfall Japanese snowbell
• Styrax japonicus 'JFS-D' – Snowcone Japanese snowbell
• Styrax japonicus 'JFS-E' – Snow Charm Japanese snowbell
• Styrax japonicus 'Lady Bell' – Japanese snowbell
• Styrax japonicus 'Midnight Prince' – Japanese snowbell
• Styrax japonicus 'Momo-shidare' – Japanese snowbell
• Styrax japonicus 'Pink Chimes' – Japanese snowbell
• Styrax japonicus Rubra Pendula Group – Japanese snowbell
• Styrax japonicus 'Sleepy' – Japanese snowbell
• Styrax japonicus 'Spring Showers' – Japanese snowbell
• Styrax japonicus 'White Knight' – Japanese snowbell
• Styrax platanifolius subsp. texanus – Texas snowbells
• Styrax tonkinensis – Siam benzoin
• Styrax wuyuanensis
• Succisella inflexa (ex. 'Frosted Pearls')
• ×Sycoparrotia semidecidua
• ×Sycoparrotia semidecidua 'Purple Haze'
• Sycopsis sinensis – Chinese fighazel
• Sycopsis sinensis 'Variegata' – variegated evergreen ironwood
• Symphoricarpos ×chenaultii 'Brain de Soleil' – Blade of Sun gold-leaf Chenault coralberry
• Symphoricarpos ×doorenbosii 'Pink Magic' – Doorenbos coralberry
• Symphyotrichum oblongifolium 'Fanny' – aromatic aster
• Symphyotrichum oblongifolium 'October Skies' – aromatic aster
• Symphyotrichum oblongifolium 'Raydon's Favorite' – aromatic aster
• Symphytum 'Hidcote Variegated' – comfrey
• Symphytum ×uplandicum 'Axminster Gold' – variegated comfrey
• Syneilesis aconitifolia – shredded umbrella plant
• Syringa – lilac
• Syringa 'Betsy Ross' – hybrid white flowered lilac
• Syringa 'G13103' – New Age White lilac
• Syringa 'Lark Song' – hybrid lilac
• Syringa pekinensis 'WFH2' – Great Wall lilac
• Syringa 'Penda' – Bloomerang lilac
• Syringa pubescens subsp. patula – Korean lilac
• Syringa reticulata subsp. amurensis – Amur tree lilac
• Syringa 'SMSJBP7' – Bloomerang Dark Purple re-blooming lilac
• Syringa 'SMSMPRZ1' – Rhythm & Bloom re-blooming lilac

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T

• Tagetes lucida – sweet-scented Mexican marigold
• Taiwania cryptomerioides – coffin tree
• Taiwania cryptomerioides Flousiana Group – coffin tree
• Tamarix ramosissima 'Rubra' – tamarisk
• Tanacetum vulgare 'Isla Gold'
• Taxodium – Swamp Cypress
• Taxodium distichum – bald cypress
• Taxodium distichum 'Cascade Falls' – bald cypress
• Taxodium distichum 'Cody's Feathers' – dwarf bald cypress
• Taxodium distichum 'Crazy Horse' – twisted bald cypress
• Taxodium distichum 'Emerald Shadow' – bald cypress
• Taxodium distichum 'Fallingwater' – weeping bald cypress
• Taxodium distichum 'Gee Wizz' – bald cypress
• Taxodium distichum var. imbricarium – pond cypress
• Taxodium distichum var. imbricarium 'Schwerin' – pond cypress
• Taxodium distichum 'JFS-SGPN' – Green Whisper bald cypress
• Taxodium distichum 'Jim's Little Guy' – bald cypress
• Taxodium distichum 'Little Twister' – bald cypress
• Taxodium distichum var. mexicanum – Montezuma cypress
• Taxodium distichum 'Monarch of Illinois' – bald cypress
• Taxodium distichum 'Peve Minaret' – bald cypress
• Taxodium distichum 'Peve Yellow' – bald cypress
• Taxodium 'LaNana' – bald cypress
• Taxodium 'Zhongshansa' – Nanjing Beauty cypress
• Taxus baccata – common yew
• Taxus baccata 'Adpressa Aurea' – common yew
• Taxus cuspidata 'Aurescens' – gold-flush Japanese yew
• Taxus cuspidata 'Gold Edged Upright' – Japanese yew
• Taxus cuspidata 'Rezek's Gold' – Japanese yew
• Taxus wallichiana var. chinensis – Chinese yew
• Taxus wallichiana var. mairei – Maire's yew
• Taxus wallichiana var. mairei (yellow fruit) – Maire's yew
• Tecoma fulva 'TEC14004' – Chicklet Orange flaming bells
• Tecomaria capensis – cape honeysuckle
• Ternstroemia
• Ternstroemia gymnanthera 'Broody' – Juliet variegated false Japanese cleyera
• Ternstroemia gymnanthera 'Burnished Gold' – golden false Japanese cleyera
• Ternstroemia gymnanthera 'Conthera' – Regal false Japanese cleyera
• Ternstroemia gymnanthera 'Golden Bear' – false Japanese cleyera
• Ternstroemia gymnanthera (Lynn Lowrey dwarf) – dwarf false Japanese cleyera
• Ternstroemia gymnanthera (purple-leaf) – purple-leaf false Japanese cleyera
• Ternstroemia gymnanthera (Worthington compact) – compact false Japanese cleyera
• Tetraneuris acaulis – angelita daisy
• Tetraneuris acaulis 'Las Vegas'
• Tetraneuris scaposa 'Travis' – four nerve daisy
• Tetrapanax papyrifer – rice paper plant
• Teucrium
• Teucrium chamaedrys subsp. nuchense 'Pride of Georgia'
• Teucrium cossonii
• Teucrium divaricatum subsp. canescens
• Teucrium divaricatum subsp. divaricatum – spreading germander
• Teucrium marum – cat thyme
• Teucrium polium
• Teucrium procerum – tall germander
• Thalia dealbata – powdery thalia
• Thalictrum 'Cotton Candy' – meadow rue
• Thalictrum rochebruneanum var. grandisepalum – meadow rue
• Thalictrum 'Splendide' – meadow rue
• Thelypteris acuminata 'Cristata'
• Thelypteris bombadilii
• Thelypteris palustris – marsh fern
• Thlaspi minimum
• Thuja occidentalis 'American Pillar' – American arborvitae
• Thuja occidentalis 'Art Boe' – North Pole American arborvitae
• Thuja occidentalis 'Concesarini' – Pancake American arborvitae
• Thuja occidentalis 'Congabe' – Fire Chief American arborvitae
• Thuja occidentalis 'Degroot's Spire' – American arborvitae
• Thuja occidentalis 'George Washington' – American arborvitae
• Thuja occidentalis 'Hetz Midget' – American arborvitae
• Thuja occidentalis 'Jantar' – American arborvitae
• Thuja occidentalis 'Malonyana' – American arborvitae
• Thuja occidentalis 'Milleri' – American arborvitae
• Thuja occidentalis 'Pendula' – American arborvitae
• Thuja occidentalis 'Perk Vlaanderen' – American arborvitae
• Thuja occidentalis 'Quebec Weeping' – American arborvitae
• Thuja occidentalis 'Rushmore' – American arborvitae
• Thuja occidentalis 'Smaragd' – Emerald arborvitae
• Thuja occidentalis 'Unicorn' – American arborvitae
• Thuja occidentalis 'Waterfield' – American arborvitae
• Thuja plicata 'Clemson Select' – western red cedar
• Thuja plicata 'Collyer's Gold' – western red cedar
• Thuja plicata 'Nana' – western red cedar
• Thuja plicata 'Zebrina' – western red cedar
• Thuja – Powdered Gold arborvitae
• Thuja ×soeegaardii 'BFC68' – Virginian arborvitae
• Thuja ×soeegaardii 'Junior Giant' – arborvitae
• Thuja 'Starkie's Gold' – arborvitae
• Thujopsis dolabrata 'Aurea' – golden false arborvitae
• Thujopsis dolabrata var. hondai – northern Japanese false arborvitae
• Thunbergia battiscombei – blue glory vine
• Thymus ×citriodorus 'Golden Lemon' – thyme
• Thymus mastichina – herb mastic
• Thymus pannonicus – Eurasian thyme
• Thymus praecox subsp. articus 'Elfin' – white creeping thyme
• Thymus zygis – Spanish thyme
• Tigridia pavonia 'Peachy Keen' – Mexican shell flower
• Tilia americana var. caroliniana – basswood
• Tilia cordata 'Akira Gold' – littleleaf linden
• Tilia cordata 'Dwarf Weeper' – littleleaf linden
• Tilia cordata 'Halka' – Summer Sprite littleleaf linden
• Tilia cordata 'June Bride' – littleleaf linden
• Tilia cordata 'Lico' – littleleaf linden
• Tilia cordata 'Winter Orange' – littleleaf linden
• Tilia endochrysea – white-haired linden
• Tilia henryana – Henry's linden
• Tilia 'Henryk Eder' – cut-leaf linden
• Tilia insularis – Korean linden
• Tilia kiusiana – Japanese linden
• Tilia aff. mexicana – basswood
• Tilia nobilis – noble lime
• Tilia platyphyllos 'Laciniata' – bigleaf linden
• Tilia tomentosa 'Silver Globe' – silver linden
• Tilia 'Zamoyskiana' – Centennial basswood
• Titanotrichum oldhamii – woodland foxglove
• Torreya californica 'Spreadeagle' – California torreya
• Torreya fargesii – Farges nutmeg tree
• Torreya grandis – Chinese nutmeg tree
• Torreya nucifera – Japanese torreya
• Torreya nucifera 'Gold Strike' – Japanese torreya
• Torreya taxifolia – Florida torreya
• Trachelospermum asiaticum 'Hatsuyuki' – Asiatic jasmine
• Trachelospermum asiaticum 'Kiifu Chirimen' – Asiatic jasmine
• Trachelospermum asiaticum 'Nagaba' – Asiatic jasmine
• Trachelospermum asiaticum 'Ogon Chirimen' – Asiatic jasmine
• Trachelospermum asiaticum 'Ougon Nishiki' – Asiatic jasmine
• Trachelospermum asiaticum 'Theta' – Asiatic jasmine
• Trachelospermum asiaticum (variegated) – Asiatic jasmine
• Trachelospermum jasminoides – star jasmine
• Trachelospermum jasminoides 'Fragrant Gold' – star jasmine
• Trachelospermum jasminoides 'Mandianum' – star jasmine
• Trachelospermum jasminoides 'Raulston Hardy' – star jasmine
• Trachycarpus
• Trachycarpus fortunei – windmill palm
• Trachycarpus fortunei (Bulgaria) – windmill palm
• Trachycarpus fortunei 'Norfolk' – windmill palm
• Trachycarpus fortunei 'Taylor's Hardy' – windmill palm
• Trachycarpus fortunei 'Wagnerianus' – windmill palm
• Trachycarpus fortunei 'Wagnerianus' × T. nanus – dwarf windmill palm
• Trachycarpus princeps × T. fortunei 'Wagnerianus' – hybrid palm
• Tradescantia 'Lucky Charm' – spiderwort
• Tradescantia 'Ocampo White' – spiderwort
• Tradescantia ohiensis – Ohio spiderwort
• Tradescantia pallida – purple heart
• Tradescantia pallida 'Blue Sue' – purple heart
• Tradescantia pallida 'Kartuz Giant' – purple heart
• Tradescantia pallida 'Purpurea' – purple heart
• Tradescantia sillamontana – cobweb spiderwort
• Tradescantia tharpii
• Tricyrtis 'Fluffy Orchid' – toad lily
• Tricyrtis formosana – toad lily
• Tricyrtis formosana 'Autumn Glow' – toad lily
• Tricyrtis formosana 'Autumn Gold' – toad lily
• Tricyrtis formosana var. glandosa – toad lily
• Tricyrtis lasiocarpa – toad lily
• Tricyrtis 'Momoe' – toad lily
• Tricyrtis puberula – downy toad lily
• Tricyrtis ravenii – Raven's toad lily
• Tricyrtis 'Shikin' – toad lily
• Trillium cuneatum – little sweet Betsy
• Trillium erectum – wakerobin
• Trillium foetidissimum – stinking trillium
• Trillium gracile 'Shelbyville' – slender trillium
• Trillium ludovicianum – Louisiana trillium
• Trillium maculatum (Gainesville, FL form)
• Trillium recurvatum – bloody butcher
• Trillium underwoodii – longbract trillium
• Triteleia
• Triteleia 'Aquarius'
• Triteleia ixioides 'Starlight' – prettyface
• Triteleia laxa 'Corrina' – Ithuriel's spear
• Triteleia laxa 'Koningin Fabiola' – Ithuriel's spear
• Triteleia 'Ocean Queen'
• Triteleia 'Rudy'
• Triteleia 'Silver Queen'
• Trochodendron aralioides 'Big Bertha' – wheel tree
• Tsuga canadensis – eastern hemlock
• Tsuga canadensis 'Curley' – contorted dwarf eastern hemlock
• Tsuga canadensis 'Kingsville Spreader' – compact eastern hemlock
• Tsuga canadensis 'Sargentii' – Sargent's weeping hemlock
• Tsuga canadensis 'Stranger' – dwarf eastern hemlock
• Tsuga canadensis 'Vermeulen's Winter Gold' – eastern hemlock
• Tsuga caroliniana 'Cullowhee Upright Weeper' – Carolina hemlock
• Tsuga caroliniana 'Dilworth Compact' – compact Carolina hemlock
• Tsuga chinensis – Chinese hemlock
• Tsuga sieboldii – southern Japanese hemlock
• Tulbaghia simmleri
• Tulbaghia violacea 'Variegata' – variegated society garlic
• Tulbaghia (white)
• Tulipa acuminata
• Tulipa 'Amazing Grace'
• Tulipa bakeri 'Lilac Wonder' – Miniature Tulip
• Tulipa clusiana
• Tulipa clusiana var. chrysantha – golden lady tulip
• Tulipa clusiana var. chrysantha 'Tubergen's Gem' – golden lady tulip
• Tulipa clusiana 'Cynthia' – lady tulip
• Tulipa clusiana 'Lady Jane'
• Tulipa clusiana 'Sylvia'
• Tulipa cretica 'Hilde'
• Tulipa 'Danique'
• Tulipa 'Firework'
• Tulipa 'Flashback'
• Tulipa 'Francois'
• Tulipa humilis 'Red Cap'
• Tulipa 'Juan'
• Tulipa 'Kansas Proud'
• Tulipa linifolia [Batalinii Group] 'Honky Tonk'
• Tulipa linifolia 'Bright Gem'
• Tulipa 'Little Beauty' – tulip
• Tulipa 'Little Princess' – miniature tulip
• Tulipa 'Lizzy' – tulip
• Tulipa 'Marie Jo'
• Tulipa 'Marilyn'
• Tulipa 'Maureen' – tulip
• Tulipa 'Molto Amata'
• Tulipa 'Moonblush'
• Tulipa 'Orange Pride'
• Tulipa 'Orca'
• Tulipa orphanidea subsp. whittallii – Whittall tulip
• Tulipa 'Palmyra'
• Tulipa 'Parade'
• Tulipa 'Password'
• Tulipa 'Peppermint Stick'
• Tulipa 'Pink Impression' – Darwin hybrid tulip
• Tulipa praestans 'Shogun' – tulip
• Tulipa 'Pretty Woman'
• Tulipa 'Purissima' – white emperor tulip
• Tulipa 'Red Emperor'
• Tulipa 'Red Hunter'
• Tulipa sylvestris
• Tulipa 'Taco'
• Tulipa 'Tinka' – tulip
• Tulipa 'Tiny Timo'
• Tulipa vvedenskyi 'Tangerine Beauty'
• Tupistra
• Tweedia solanoides – pink-flowered tweedia

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U

• Ulmus alata 'Lace Parasol' – weeping winged elm
• Ulmus americana 'Jfs-prince II' – Colonial Spirit American elm
• Ulmus chenmoui 'JAB Morton' – Summer Elixir Chenmou elm
• Ulmus crassifolia – Cedar Elm
• Ulmus minor – field elm
• Ulmus minor subsp. minor 'Pendula' – weeping smoothleaf elm
• Ulmus parvifolia 'Blizzard' – lacebark elm
• Ulmus parvifolia var. coreana – lacebark elm
• Ulmus parvifolia 'Dynasty' – lacebark elm
• Ulmus parvifolia 'Frosty' – lacebark elm
• Ulmus parvifolia 'Golden Rey' – lacebark elm
• Ulmus pumila 'Dwarf Weeper' – witch elm
• Ungnadia speciosa – Mexican buckeye
• Unknown Cactaceae
• Unknown cactus
• Unknown Ericaceae
• Unknown Rosaceae
• Uvularia grandiflora – bellwort

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V

• Vaccinium bracteatum – sea bilberry
• Vaccinium darrowii – Darrow's blueberry
• Vaccinium elliottii – high bush blueberry
• Vaccinium ovatum – evergreen huckleberry
• Vaccinium ovatum 'Cascade Jewel' – evergreen huckleberry
• Vaccinium ovatum 'VacBri2' – Cascade Sunburst evergreen huckleberry
• Vaccinium ovatum 'VACSID1' – Scarlet Ovation evergreen huckleberry
• Vaccinium pallidum – dryland blueberry
• Vaccinium 'Pink Lemonade' – pink-fruited hybrid blueberry
• Vauquelinia angustifolia – Chisos rosewood
• Vella spinosa
• Verbascum chaixii – nettle-leaved mullein
• Verbascum sinuatum
• Verbena bonariensis – Argentina verbena
• Verbena 'KLEVP22039'
• Verbena rigida
• Verbena rigida 'Santos' – rigid verbena
• Verbena rigida 'WNVECPPUR' – Cake Pops Purple slender vervain
• Verbena
• Verbena
• Verbena 'WNVESBIB'
• Verbena aff. xutha – blue Porterwed
• Verbesina lindheimeri
• Verbesina olsenii
• Vernicia fordii – tung oil tree
• Vernonia – ironweed
• Vernonia angustifolia 'Plum Peachy' – narrow-leaf ironweed
• Vernonia gigantea 'Jonesboro Giant' – ironweed
• Vernonia lettermannii 'Iron Butterfly' – ironweed
• Vernonia lindheimeri – wooly ironweed
• Veronica 'Balmoodink'
• Veronica daurica
• Veronica 'Novaverblu'
• Veronica 'Reavis' – Crystal River veronica
• Veronica repens 'Sunshine' – creeping speedwell
• Veronica spicata 'Blue Wonder' – speedwell
• Veronica spicata 'Lavender Lightsaber' – speedwell
• Veronica 'Waterperry Blue' – speedwell
• Veronicastrum tagawae
• Viburnum
• Viburnum atrocyaneum f. harryanum – Harry's viburnum
• Viburnum awabuki – sweet viburnum
• Viburnum awabuki 'Chindo' – sweet viburnum
• Viburnum awabuki – red vein sweet viburnum
• Viburnum bracteatum – limerock arrowwood
• Viburnum bracteatum 'Emerald Luster' – limerock arrowwood
• Viburnum ×burkwoodii 'Anne Russell' – Burkwood viburnum
• Viburnum ×burkwoodii 'Conoy' – Burkwood viburnum
• Viburnum ×burkwoodii 'Duvone' – American Spice dwarf Burkwood viburnum
• Viburnum ×burkwoodii 'Mohawk' – Burkwood viburnum
• Viburnum ×carlcephalum – fragrant snowball
• Viburnum ×carlcephalum 'Cayuga' – fragrant snowball
• Viburnum carlesii var. bitchiuense – Bitchiu viburnum
• Viburnum carlesii 'Prairie Rose' – Korean spice viburnum
• Viburnum carlesii 'SMVCB' – Spice Baby compact Korean spice viburnum
• Viburnum carlesii 'Spiro' – Spice Girl Korean spice viburnum
• Viburnum cassinoides (Hillier form) – witherod viburnum
• Viburnum 'Chippewa' – Egolf hybrid viburnum
• Viburnum cinnamomifolium – cinnamon-leaved viburnum
• Viburnum corylifolium
• Viburnum cotinifolium – smoketree-leaf viburnum
• Viburnum dentatum 'Golden Arrow' – golden arrowwood
• Viburnum dentatum (Greer Cave, GA)
• Viburnum dentatum 'Island Treasure' – variegated arrowwood
• Viburnum dentatum 'Papzam' – Papoose compact arrowwood
• Viburnum dentatum 'Perle Bleu' – arrowwood
• Viburnum dentatum 'Ralph Senior' – Autumn Jazz arrowwood
• Viburnum dilatatum (Ryukyu Island) – linden viburnum
• Viburnum dilatatum 'Smnvdmdo' – Tandoori Orange linden viburnum
• Viburnum 'Emerald Triumph' – Pellett hybrid viburnum
• Viburnum 'Eskimo' – Egolf hybrid viburnum
• Viburnum foetidum – viburnum
• Viburnum furcatum (ex DJHJ 01011) – scarlet-leaved viburnum
• Viburnum ×globosum 'Jermyn's Globe' – viburnum
• Viburnum glomeratum subsp. glomeratum
• Viburnum glomeratum subsp. magnificum
• Viburnum 'Huron' – Egolf hybrid viburnum
• Viburnum japonicum – Japanese viburnum
• Viburnum japonicum 'Superb' – large-flowered Japanese viburnum
• Viburnum japonicum 'Variegatum' – variegated Japanese viburnum
• Viburnum lantana 'Variegatum' – variegated wayfaring tree
• Viburnum 'Lord Byron' – hybrid viburnum
• Viburnum luzonicum – Luzon viburnum
• Viburnum luzonicum var. oblongum – oblong-leaf Luzon viburnum
• Viburnum mongolicum – Mongolian viburnum
• Viburnum 'Nantucket' – hybrid viburnum
• Viburnum 'NCVX2' – Yin David viburnum
• Viburnum 'NCVX3' – Yang David viburnum
• Viburnum 'NCVX4' – Sweet Talker viburnum
• Viburnum nitidum – possum haw viburnum
• Viburnum nudum var. angustifolium – possumhaw viburnum
• Viburnum obovatum 'Christmas Snow' – compact Walter's viburnum
• Viburnum obovatum 'Compacta' – Walter's viburnum
• Viburnum obovatum 'Mrs. Schiller's Delight' – dwarf Walter's viburnum
• Viburnum obovatum 'Raulston Hardy' – Walter's viburnum
• Viburnum obovatum 'St. Paul' – Walter's viburnum
• Viburnum obovatum 'Walter's Claim to Fame' – small-leaf arrowwood
• Viburnum obovatum 'Whorled Class' – compact Walter's viburnum
• Viburnum oliganthum 'Kyo Kanzashi'
• Viburnum opulus 'Aureum' – European cranberry bush
• Viburnum opulus subsp. calvescens – smooth cranberry bush
• Viburnum opulus 'Harvest Gold' – European cranberry bush
• Viburnum opulus 'Roseum' – European cranberry bush
• Viburnum orientale – oriental viburnum
• Viburnum parvifolium
• Viburnum plicatum 'Mary Milton' – pink Japanese snowball viburnum
• Viburnum plicatum 'Popcorn' – Japanese snowball viburnum
• Viburnum plicatum f. tomentosum 'Copper Ridges' – doublefile viburnum
• Viburnum plicatum f. tomentosum 'Pink Beauty' – pink doublefile viburnum
• Viburnum plicatum f. tomentosum 'Shasta' – doublefile viburnum
• Viburnum ×pragense – Prague viburnum
• Viburnum ×pragense 'Decker' – Prague viburnum
• Viburnum propinquum – Chinese evergreen viburnum
• Viburnum prunifolium – blackhaw viburnum
• Viburnum recognitum – southern arrowwood
• Viburnum ×rhytidophylloides 'Alleghany' – leatherleaf viburnum
• Viburnum ×rhytidophylloides 'Interduke' – Dart's Duke leatherleaf viburnum
• Viburnum ×rhytidophylloides 'NCVR1' – Emerald Envy leatherleaf viburnum
• Viburnum rhytidophyllum 'Hefline' – Fenceline leatherleaf viburnum
• Viburnum rufidulum 'Royal Guard' – rusty blackhaw
• Viburnum rufidulum (Superior Trees) – rusty blackhaw
• Viburnum sargentii 'Chiquita' – compact Sargent viburnum
• Viburnum sargentii f. flavum – yellow-fruit Sargent vicurnum
• Viburnum sempervirens – evergreen viburnum
• Viburnum setigerum – tea viburnum
• Viburnum 'sPg-3-024' – Moonlit Lace viburnum
• Viburnum suspensum – Sandankwa viburnum
• Viburnum tinus 'Compactum' – compact laurustinus
• Viburnum tinus 'Lisa Rosa' – Shades of Pink laurustinus
• Viburnum tinus 'Spring Bouquet' – laurustinus
• Vinca minor 'Aureovariegata' – common periwinkle
• Vinca minor (variegated) – common periwinkle
• Viola pedata 'Eco Artist Palette' – bird's foot Vvolet
• Viola walterii 'Silver Gem' – prostrate blue violet
• Vitex agnus-castus 'Bailtextwo' – Galactic Pink chaste tree
• Vitex agnus-castus (Bobby's dwarf) – chaste tree
• Vitex agnus-castus 'Fletcher Pink' – chaste tree
• Vitex agnus-castus 'PIIVAC-1' – Delta Blues chaste tree
• Vitex agnus-castus 'Shoal Creek' – chaste tree
• Vitex agnus-castus 'V07-SC-OP-4' – Pink Pinnacle chaste tree
• Vitex 'Bailtexone' – Flip Side chastetree
• Vitex negundo – Chinese chaste tree
• Vitex negundo var. heterophylla – cutleaf chaste tree

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W

• Waldsteinia lobata – Piedmont barren strawberry
• Washingtonia robusta – Mexican fan palm
• Watsonia pillansii – Beatrice watsonia
• Weigela coraeensis – Korean weigela
• Weigela florida – weigela
• Weigela florida 'Bokrasopea' – Sonic Bloom Pearl weigela
• Weigela florida 'Carlton' – Ghost weigela
• Weigela florida 'Korean Sunrise' – weigela
• Weigela japonica 'Dart's Colourdream' – weigela
• Wigginsia macrocanthe
• Wikstroemia genkwa – lilac daphne
• Wikstroemia genkwa 'John Bieber' – lilac daphne
• Wikstroemia trichotoma
• Wisteria brachybotrys 'Samaya' – silky wisteria
• Wisteria floribunda f. microphylla 'Hime' – small-leaf wisteria
• Wisteria frutescens var. macrostachya 'Clara Mack' – white Kentucky wisteria
• Wisteria frutescens 'Nivea' – American wisteria
• Wisteriopsis japonica 'Alba' – summer wisteria
• Woodwardia fimbriata – chain fern
• Woodwardia (hybrid)
• Woodwardia ×izuensis – hybrid chain fern
• Woodwardia orientalis – oriental chain fern
• Woodwardia orientalis (crested) – oriental chain fern
• Wulfenia carinthiaca – cow's footstep wulfenia

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X

• Xanthorhiza simplicissima – yellowroot

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Y

• Yucca aloifolia – Spanish bayonet
• Yucca aloifolia 'Magenta Magic' – Spanish bayonet
• Yucca aloifolia 'Variegata' – variegated Spanish bayonet
• Yucca arizonica – Sahuiliqui yucca
• Yucca baccata – banana yucca
• Yucca 'Blue Boy' – yucca
• Yucca 'Blue Sentry' – blue yucca
• Yucca carnerosana – Spanish dagger
• Yucca cernua – nodding Texas yucca
• Yucca elata – soap-tree yucca
• Yucca filamentosa – Adam's needle
• Yucca filamentosa 'Golden Sword' – variegated Adam's needle
• Yucca filamentosa 'Vivacious' – variagated Adam's needle
• Yucca flaccida – Adam's needle
• Yucca flaccida 'Bright Edge' – Adam's needle
• Yucca flaccida 'Color Guard' – Adam's needle
• Yucca flaccida 'Garland's Gold' – Adam's needle
• Yucca flaccida 'Gold Heart' – Adam's needle
• Yucca flaccida 'Ivory' – Adam's needle
• Yucca flaccida 'Trompenberg Blue' – Adam's needle
• Yucca gloriosa 'Lone Star' – Spanish dagger
• Yucca gloriosa 'Variegata' – variegated Spanish dagger
• Yucca linearifolia – linear leaf yucca
• Yucca linearifolia 'Line Dance' – linear leaf yucca
• Yucca louisianensis – Louisiana yucca
• Yucca madrensis – mountain yucca
• Yucca pallida – pale-leaf yucca
• Yucca recurvifolia – curve-leaf Spanish dagger
• Yucca recurvifolia 'Cousin It' – curve-leaf Spanish dagger
• Yucca recurvifolia 'Hinvargas' – Margaritaville variegated curve-leaf Spanish dagger
• Yucca recurvifolia 'Mellow Yellow'
• Yucca aff. rostrata
• Yucca rostrata – Mexican blue yucca
• Yucca rupicola – twistleaf yucca
• Yucca schottii – Schott's yucca
• Yucca thompsoniana – Trans Pecos yucca
• Yucca torreyi – Torrey yucca
• Yucca treculeana – Spanish dagger
• Yucca treculeana (giant form) – Spanish dagger

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Z

• Zamia angustifolia – narrow leaf cycad
• Zantedeschia aethiopica 'African Gold' – variegated calla lily
• Zantedeschia aethiopica 'White Giant' – giant calla lily
• Zantedeschia albomaculata – calla lily
• Zantedeschia 'Crystal Blush'
• Zantedeschia 'Mango'
• Zantedeschia 'Paco' – calla lily
• Zea perennis 'Winning Streak'
• Zelkova carpinifolia – Caucasian elm
• Zelkova serrata 'C Creek 1' – Gold Falls sawleaf zelkova
• Zelkova serrata 'Goblin' – sawleaf zelkova
• Zelkova serrata 'Goshiki' – sawleaf zelkova
• Zelkova serrata 'JFS KW4ZS' – Zileration sawleaf zelkova
• Zelkova serrata 'JFS-KW1' – City Sprite sawleaf zelkova
• Zelkova serrata 'Musashino' – sawleaf zelkova
• Zelkova serrata 'Ogon' – sawleaf zelkova
• Zelkova serrata (weeping) – sawleaf zelkova
• Zelkova sinica – Chinese zelkova
• Zenobia pulverulenta 'Raspberry Ripple' – dusty zenobia
• ×Zephybranthus 'Norma Pearl' – rain lily
• Zephyranthes – rain lily
• Zephyranthes 'Aquarius' – rain lily
• Zephyranthes atamasco – atamasco lily
• Zephyranthes 'Bali Beauty' – rain lily
• Zephyranthes 'Bangkok Yellow' – rain lily
• Zephyranthes 'Batik' – rain lily
• Zephyranthes bifida – oxblood lily
• Zephyranthes 'Big Dude' – rain lily
• Zephyranthes candida – white rain lily
• Zephyranthes 'Candy Sweet' – rain lily
• Zephyranthes citrina – rain lily
• Zephyranthes 'Confection' – rain lily
• Zephyranthes drummondii – rain lily
• Zephyranthes drummondii 'Fedora' – rain lily
• Zephyranthes drummondii (San Carlos form) – rain lily
• Zephyranthes 'El Cielo' – rain lily
• Zephyranthes (ex. 'Apricot Queen') – rain lily
• Zephyranthes flavissima – yellow rain lily
• Zephyranthes 'Grandjax' – rain lily
• Zephyranthes 'Itsy Bitsy' – rain lily
• Zephyranthes 'Java' – rain lily
• Zephyranthes jonesii – rain lily
• Zephyranthes 'Kathryn' – rain lily
• Zephyranthes 'Labuffarosea' – rain lily
• Zephyranthes 'Lily Pies' – rain lily
• Zephyranthes 'Lydia Luckman' – rain lily
• Zephyranthes macrosiphon – rain lily
• Zephyranthes macrosiphon × Z. simpsonii – rain lily
• Zephyranthes mesochloa – rain lily
• Zephyranthes minima – little rain lily
• Zephyranthes minuta – rosepink rain lily
• Zephyranthes morrisclintii (Redneck Romance strain) – rain lily
• Zephyranthes 'Moulin Rouge' – rain lily
• Zephyranthes 'Paul Niemi' – rain lily
• Zephyranthes (pink) – rain lily
• Zephyranthes 'Pink Panther' – pink rain lily
• Zephyranthes primulina – yellow rain lily
• Zephyranthes reginae – rain lily
• Zephyranthes 'Silk Taffeta'
• Zephyranthes smallii – rain lily
• Zephyranthes 'Summer Snow' – rain lily
• Zephyranthes 'Summer's Chill' – rain lily
• Zephyranthes 'Sunset' – sunset rain lily
• Zephyranthes 'Tenexio Apricot' – rain lily
• Zephyranthes 'Tention' – rain lily
• Zephyranthes traubii 'San Carlos Form' – rain lily
• Zephyranthes 'Wanthong'
• Zingiber mioga – myoga ginger
• Zingiber mioga 'Dancing Crane' – myoga ginger
• Zingiber mioga 'Lushan Gold' – myoga ginger
• Zingiber mioga 'Silver Arrow' – myoga ginger
• Zinnia grandiflora 'Gold on Blue'
• Ziziphus jujuba 'So' – contorted jujube