Plants
Caccinia macaranthera var. crassifolia Caesalpinia gilliesii Caesalpinia pulcherrima Caesalpinia pulcherrima 'Compton'
Caesalpinia yucatanensis Caladium bicolor (x hortulanum) Caladium bicolor (x hortulanum) Caladium bicolor (x hortulanum) 'Aaron'
Caladium bicolor (x hortulanum) 'Birdsey' Caladium bicolor (x hortulanum) 'Blaze' Caladium bicolor (x hortulanum) 'Calypso' Caladium bicolor (x hortulanum) 'Candidum Junior'
Caladium bicolor (x hortulanum) 'Candidum' Caladium bicolor (x hortulanum) 'Carolyn Whorton' Caladium bicolor (x hortulanum) 'Clarice' Caladium bicolor (x hortulanum) 'Elise'
Caladium bicolor (x hortulanum) 'Fannie Munson' Caladium bicolor (x hortulanum) 'Fantasy' Caladium bicolor (x hortulanum) 'Florida Cardinal Red' Caladium bicolor (x hortulanum) 'Florida Cardinal Red'
Caladium bicolor (x hortulanum) 'Florida Elise' Caladium bicolor (x hortulanum) 'Florida Fantasy' Caladium bicolor (x hortulanum) 'Florida Red Ruffles' Caladium bicolor (x hortulanum) 'Florida Rose Light'
Caladium bicolor (x hortulanum) 'Florida Sunrise' Caladium bicolor (x hortulanum) 'Florida Sweetheart' Caladium bicolor (x hortulanum) 'Florida Sweetheart' Caladium bicolor (x hortulanum) 'Freida Hemple'
Caladium bicolor (x hortulanum) 'Gingerland' Caladium bicolor (x hortulanum) 'Irene Dahl' Caladium bicolor (x hortulanum) 'June Bride' Caladium bicolor (x hortulanum) 'Kathleen'
Caladium bicolor (x hortulanum) 'Miss Muffet' Caladium bicolor (x hortulanum) 'Mixed colors' Caladium bicolor (x hortulanum) 'Mrs Arno Nehrling' Caladium bicolor (x hortulanum) 'Pink Beauty'
Caladium bicolor (x hortulanum) 'Pink Symphony' Caladium bicolor (x hortulanum) 'Postman Joiner' Caladium bicolor (x hortulanum) 'Red Flash' Caladium bicolor (x hortulanum) 'Red Frill'
Caladium bicolor (x hortulanum) 'Rosebud' Caladium bicolor (x hortulanum) 'Thai Beauty' Caladium bicolor (x hortulanum) 'White Christmas' Caladium bicolor (x hortulanum) 'White Queen'
Caladium bicolor (x hortulanum) 'White Wing' Calamagrostis x acutiflora Calamagrostis x acutiflora 'Karl Foerster' Calamagrostis x acutiflora 'Overdam'
Calamintha nepeta Calamintha nepeta Calamintha nepeta 'Alba' Calamintha nepeta 'Variegata'
Calamintha nepeta 'White Cloud' Calandrinia polyandra Calandrinia umbellata Calanthe discolor
Calanthe sieboldii Calathea burle-marxii Calathea crotalifera 'Aunt Gladys' Calathea cylindrica
Calathea libbyana Calathea loesneri Calathea makoyana Calathea ornata
Calathea picturata 'Argenteao' Calathea tigrina Calathea warscewiczii Calceolaria biflora
Calceolaria biflora 'Goldcrest' Calceolaria biflora 'Triompe de Versailles' Calceolaria fiebergiana Calceolaria polyrrhiza 'John Innes'
Calendula officinalis Calendula officinalis 'Bon Bon Orange' Calendula officinalis 'Bon Bon Yellow' Calendula officinalis 'Calypso Orange with Black Center'
Calendula officinalis 'Calypso Yellow with Black Center' Calendula officinalis 'Fiesta Gitana' Calendula officinalis 'Gitano Yellow' Calendula officinalis 'Gitano'
Calendula officinalis 'Greenheart Orange' Calendula officinalis 'Indian Prince' Calendula officinalis 'Kablouna Mix' Calendula officinalis 'Lemon Gem'
Calendula officinalis 'Mandarin Orange' Calendula officinalis 'Mandarin' Calendula officinalis 'Pacific Apricot' Calendula officinalis 'Pacific Beauty Mix'
Calendula officinalis 'Pink Surprise' Calendula officinalis 'Touch of Red' Calibrachoa 'Cabaret Apricot' Calibrachoa 'Cabaret Cherry Rose'
Calibrachoa 'Cabaret Deep Rose' Calibrachoa 'Cabaret Pink' Calibrachoa 'Cabaret Purple' Calibrachoa 'Cabaret Red'
Calibrachoa 'Cabaret Rose' Calibrachoa 'Cabaret Scarlet' Calibrachoa 'Cabaret White' Calibrachoa 'Callie™ Bright Red'
Calibrachoa 'Callie™ Deep Yellow' Calibrachoa 'Callie™ Painted Coral' Calibrachoa 'Callie™ Purple 07' Calibrachoa 'Million Bells® Antique Rose'
Calibrachoa 'Million Bells® Crackling Fire' Calibrachoa 'Million Bells® Flamingo' Calibrachoa 'Million Bells® Lavender' Calibrachoa 'Million Bells® Tangerine'
Calibrachoa 'Million Bells® Terra Bella' Calibrachoa 'Million Bells® Terra Linda' Calibrachoa 'Million Bells® Terra Viva' Calibrachoa 'Million Bells® Trailing Blue'
Calibrachoa 'Million Bells® Trailing Sky Blue' Calibrachoa 'Minifamous™ Apricot Red Eye' Calibrachoa 'Minifamous™ Double Pink' Calibrachoa 'Minifamous™ Super Purple'
Calibrachoa 'Superbells® Tequila Sunrise' Calla palustris Calliandra haematocephala Calliandra haematocephala 'Alba'
Calliandra schottii Calliandra surinamensis Calliandra tergemina Calliandra tweediei
Callicarpa americana Callicarpa americana Callicarpa americana 'Russell Montgomery' Callicarpa americana var. lactea
Callicarpa bodinieri Callicarpa bodinieri var. giraldii Callicarpa bodinieri var. giraldii 'Profusion' Callicarpa dichotoma
Callicarpa dichotoma 'Dark Star' Callicarpa dichotoma 'Early Amethyst' Callicarpa dichotoma 'Issai' Callicarpa dichotoma 'Issai'
Callicarpa dichotoma var. albifructus Callicarpa japonica Callicarpa japonica 'Heavy Berry' Callicarpa japonica 'Leucocarpa'
Callicarpa japonica var. luxurians Callicarpa japonica var. taquetii Callirhoe bushii Callirhoe involucrata
Callirhoe moschatus Callistemon citrinus Callistemon citrinus 'Burning Bush' Callistemon citrinus 'Compacta'
Callistemon citrinus 'Hannah Ray' Callistemon citrinus 'Jeffersii' Callistemon citrinus 'Little John' Callistemon citrinus 'Little John'
Callistemon citrinus 'Mauve Mist' Callistemon citrinus 'Splendens' Callistemon linearis Callistemon rigidus
Callistemon salignus Callistemon salignus var. viridiflora Callistemon sieberi Callistemon speciosus
Callistemon viminalis Callistemon viminalis Callistemon viminalis 'Captain Cook' Callistemon viminalis 'McCaskillii'
Callistemon viminalis 'Red Cascade' Callistephus chinensis 'Compliment Light Blue' Callistephus chinensis 'Imperial Mix' Callistephus chinensis 'Matador Light Pink'
Callistephus chinensis 'Matador Mix' Callistephus chinensis 'Matador Rose' Callistephus chinensis 'Matsumoto' Calluna vulgaris
Calocedrus decurrens Calocedrus decurrens 'Aureovariegata' Calocedrus decurrens 'Berrima Gold' Calocedrus decurrens 'Compacta'
Calocedrus decurrens 'Maupin Glow' Calochortus hirsutis Calodendrum capense Caltha palustris
Caltha palustris Caltha palustris Caltha palustris 'Alba' Caltha palustris 'Flore Plena' (Multiplex)'
Caltha palustris 'Tyermannii' Calycanthus fertilis Calycanthus floridus Calycanthus floridus 'Athens'
Calycanthus floridus 'Edith Wilder' Calycanthus floridus 'Katherine' Calycanthus floridus 'Luslawice' Calycanthus floridus 'Margarita'
Calycanthus floridus 'Michael Lindsey' Calycanthus floridus 'Mrs. Henry's Variety' Calycanthus floridus 'Purpureus' Calycanthus floridus 'Towe'
Calycanthus floridus 'Urbana' Calycanthus mohrii Calycanthus occidentalis Camassia cusickii
Camassia cusickii 'Zwanenburg' Camassia leichtlinii Camassia leichtlinii 'Alba' Camassia leichtlinii 'Atroviolacea'
Camassia leichtlinii 'Blue Danube' Camassia leichtlinii 'Electra' Camassia leichtlinii 'Eve Price' Camassia leichtlinii 'Plena'
Camassia leichtlinii 'Semi-plena' Camassia quamash (esculenta) Camassia quamash (esculenta) 'Flore-alba' Camassia quamash (esculenta) 'Orion'
Camassia quamash (esculenta) 'San Juan' Camassia scilloides Camellia japonica Camellia japonica
Camellia japonica 'Adolphe Audusson' Camellia japonica 'Altheaflora' Camellia japonica 'Are-jishi' Camellia japonica 'Aunt Jetty'
Camellia japonica 'Bernice Boddy' Camellia japonica 'Betty Sette' Camellia japonica 'Betty Sheffield Supreme' Camellia japonica 'Blood of China'
Camellia japonica 'Bob Hope' Camellia japonica 'C.M. Wilson' Camellia japonica 'Chandleri Elegans' Camellia japonica 'Chandleri'
Camellia japonica 'Chojo-Haku' Camellia japonica 'Christine Lee' Camellia japonica 'Daikagura' Camellia japonica 'Debutante'
Camellia japonica 'Donckelarii' Camellia japonica 'Dr. Tinsley' Camellia japonica 'Elegans' Camellia japonica 'Flame Variegated'
Camellia japonica 'Flame' Camellia japonica 'Glen 40' Camellia japonica 'Governor Mouton' Camellia japonica 'Greensboro Red'
Camellia japonica 'Hagoromo' Camellia japonica 'Herme' Camellia japonica 'Jack's' Camellia japonica 'Jarvis Red'
Camellia japonica 'Kumagai' Camellia japonica 'Kumasaka Variegated' Camellia japonica 'Kumasaka' Camellia japonica 'Lady Clare'
Camellia japonica 'Lady Vansittart Red' Camellia japonica 'Lady Vansittart Variegated' Camellia japonica 'Lady Vansittart' Camellia japonica 'Latifolia'
Camellia japonica 'Leucantha' Camellia japonica 'Magnoliaeflora' Camellia japonica 'Marie Bracey' Camellia japonica 'Mathothiana Rubra'
Camellia japonica 'Mathothiana Supreme' Camellia japonica 'Mathothiana' Camellia japonica 'Mrs. Charles Cobb' Camellia japonica 'Ozeki'
Camellia japonica 'Park Hill Tomorrow' Camellia japonica 'Paulette Goddard' Camellia japonica 'Pink Icicle' Camellia japonica 'Pink Perfection'
Camellia japonica 'Pope Pius IX' Camellia japonica 'Professor Charles S. Sargent' Camellia japonica 'Purity' Camellia japonica 'R.L. Wheeler'
Camellia japonica 'Rev. John C. Drayton' Camellia japonica 'Rose Dawn' Camellia japonica 'Sharon Elizabeth' Camellia japonica 'Shiro Tama'
Camellia japonica 'Showa-No-Hikari' Camellia japonica 'Spring Frill' Camellia japonica 'Swan Lake™' (Monke)' Camellia japonica 'Tenko'
Camellia japonica 'Tojo Haku' Camellia japonica 'Tricolor Red' Camellia japonica 'Tricolor' Camellia japonica 'Ville de Nantes'
Camellia japonica 'White by the Gate' Camellia japonica 'White Empress' Camellia japonica 'White Queen' Camellia japonica 'Willie Hite'
Camellia japonica 'Yuki-Komachi' Camellia oleifera Camellia oleifera 'Fire 'N Ice' Camellia oleifera 'Lu Shan Snow'
Camellia sasanqua Camellia sasanqua 'Bonanza' Camellia sasanqua 'Carolina Moonmist' Camellia sasanqua 'Cleopatra'
Camellia sasanqua 'Daydream' Camellia sasanqua 'Hana Jiman' Camellia sasanqua 'Jean May' Camellia sasanqua 'Maiden's Blush'
Camellia sasanqua 'Martha's Dream' Camellia sasanqua 'Midnight Lover' Camellia sasanqua 'Mine-No-Yuki' Camellia sasanqua 'Mist Maiden'
Camellia sasanqua 'Northern Lights' Camellia sasanqua 'Pink Butterfly' Camellia sasanqua 'Pink Goddess' Camellia sasanqua 'Pink Snow'
Camellia sasanqua 'Setsugekka' Camellia sasanqua 'Shishigashira' Camellia sasanqua 'Sparkling Burgundy' Camellia sasanqua 'Usi Bene'
Camellia sasanqua 'Wm. Lanier Hunt' Camellia sasanqua 'Yuletide' Camellia sasanqua 'Yuletide' Camellia sinensis
Camellia sinensis 'Rosea' Camellia williamsii x oleifera 'Ice Follies' Camellia x ackerman 'Frost Prince' Camellia x ackerman 'Frost Princess'
Camellia x ackerman 'Frost Queen' Camellia x ackerman 'Polar Ice' Camellia x ackerman 'Snow Flurry' Camellia x ackerman 'Sunworshipper'
Camellia x ackerman 'Two Marthas' Camellia x ackerman 'Winter's Beauty' Camellia x ackerman 'Winter's Charm' Camellia x ackerman 'Winter's Hope'
Camellia x ackerman 'Winter's Interlude' Camellia x ackerman 'Winter's Rose' Camellia x ackerman 'Winter's Star' Camellia x ackerman 'Winter's Waterlily'
Campanula 'Birch Hybrid' Campanula 'Burghaltii' Campanula 'E. K. Toogood' Campanula 'Samantha'
Campanula alliariifolia (lamiifolia) Campanula alliariifolia (lamiifolia) 'Flore-pleno' Campanula alliariifolia (lamiifolia) 'Ivory Bells' Campanula aucheri
Campanula bellidifolia Campanula carpatica Campanula carpatica 'Alba' Campanula carpatica 'Blue Clips®'
Campanula carpatica 'Blue Moonlight' Campanula carpatica 'Bressingham White' Campanula carpatica 'Chewton Joy' Campanula carpatica 'China Cup'
Campanula carpatica 'Jingle Bells' Campanula carpatica 'Kobalt Bell (Kobaltglocke)' Campanula carpatica 'Pearl Deep Blue' Campanula carpatica 'Pearl White'
Campanula carpatica 'Wedgewood Blue' Campanula carpatica 'Wedgewood White' Campanula carpatica 'White Clips®' Campanula carpatica 'White Star'
Campanula carpatica var. turbinata Campanula carpatica var. turbinata 'Isabel' Campanula cochlearifolia (pusilla) Campanula cochlearifolia (pusilla) 'Alba'
Campanula cochlearifolia (pusilla) 'Blue Tit' Campanula cochlearifolia (pusilla) 'Cambridge Blue' Campanula cochlearifolia (pusilla) 'Elizabeth Oliver' Campanula cochlearifolia (pusilla) 'Miranda'
Campanula cochlearifolia (pusilla) 'Patience Bell' Campanula formanekiana Campanula garganica Campanula garganica 'Alba'
Campanula garganica 'Blue Diamond' Campanula garganica 'Dickson's Gold' Campanula garganica 'Glandore' Campanula garganica 'W.H. Paine'
Campanula garganica var. hirsuta Campanula garganica var. hirsuta 'Alba' Campanula glomerata Campanula glomerata 'Crown of Snow'
Campanula glomerata 'Joan Elliott' Campanula glomerata 'Purple Pixie' Campanula glomerata 'Snow Cushion' Campanula glomerata 'Superba Alba'
Campanula glomerata 'Superba' Campanula glomerata 'Tom Elliott' Campanula glomerata 'White Barn'' Campanula glomerata var. acaulis
Campanula glomerata var. dahurica Campanula isophylla Campanula isophylla 'Alba' Campanula isophylla 'Balchiniana'
Campanula isophylla 'Caerulea' Campanula isophylla 'Kristal Blue' Campanula isophylla 'Mayi' Campanula isophylla 'Stella Series'
Campanula lactiflora Campanula lactiflora 'Alba' Campanula lactiflora 'Coerulea' Campanula lactiflora 'Loddon Anna'
Campanula lactiflora 'Pouffe' Campanula lactiflora 'Prichard's Variety' Campanula lactiflora 'Rosea' Campanula lactiflora 'Superba'
Campanula lactiflora 'White Pouffe' Campanula latifolia Campanula latifolia 'Alba' Campanula latifolia 'Bernice'
Campanula latifolia 'Brantwood' Campanula latifolia 'Gloaming' Campanula latifolia 'Macrantha Alba' Campanula latifolia 'Macrantha'
Campanula latifolia 'White Ladies' Campanula latiloba Campanula latiloba 'Alba' Campanula latiloba 'Hidcote Amethyst'
Campanula latiloba 'Highcliffe' Campanula latiloba 'Percy Piper' Campanula linifolia Campanula medium
Campanula medium 'Alba' Campanula medium 'Caerulea' Campanula medium 'Calycanthema Alba' Campanula medium 'Calycanthema'
Campanula medium 'Dwarf Musical Bells' Campanula medium 'Flore Pleno' Campanula persicifolia (amabilis) Campanula persicifolia (amabilis) 'Alba Coronata'
Campanula persicifolia (amabilis) 'Alba Flore-plena' Campanula persicifolia (amabilis) 'Alba' Campanula persicifolia (amabilis) 'Beechwood' Campanula persicifolia (amabilis) 'Blue Gardenia'
Campanula persicifolia (amabilis) 'Bluebell' Campanula persicifolia (amabilis) 'Boule de Neige' Campanula persicifolia (amabilis) 'Chettle Charm' Campanula persicifolia (amabilis) 'Coerulea Coronata'
Campanula persicifolia (amabilis) 'Coerulea Flore-Plena' Campanula persicifolia (amabilis) 'Frank Lawley' Campanula persicifolia (amabilis) 'grandiflora Alba' Campanula persicifolia (amabilis) 'Hampstead White'
Campanula persicifolia (amabilis) 'Moerheimii' Campanula persicifolia (amabilis) 'Snowdrift' Campanula persicifolia (amabilis) 'Telham Beauty' Campanula portenschlagiana (muralis)
Campanula portenschlagiana (muralis) 'Alba' Campanula portenschlagiana (muralis) 'Bavarica' Campanula portenschlagiana (muralis) 'Major' Campanula portenschlagiana (muralis) 'Resholt's Variety'
Campanula poscharskyana Campanula poscharskyana Campanula poscharskyana 'Blue Gown' Campanula poscharskyana 'Blue Gown'
Campanula poscharskyana 'Blue Waterfall' Campanula poscharskyana 'E.H. Frost' Campanula poscharskyana 'Lilacina' Campanula poscharskyana 'Stella'
Campanula punctata Campanula pyramidalis Campanula pyramidalis 'Alba' Campanula pyramidalis 'Aureo-variegata'
Campanula pyramidalis 'Compacta' Campanula rhomboidalis Campanula rotundifolia Campanula rotundifolia 'Alba'
Campanula rotundifolia 'Flore-plena' Campanula rotundifolia 'Olympia' Campanula takesimana Campanula takesimana 'Elizabeth'
Campanula thrysoides Campanula trachelium 'Bernice' Campsis grandiflora Campsis grandiflora
Campsis grandiflora 'Morning Calm' Campsis radicans Campsis radicans Campsis radicans 'Apricot'
Campsis radicans 'Crimson Trumpet' Campsis radicans 'Flava' Campsis radicans 'Judy' Campsis radicans 'Oconee'
Campsis radicans 'Praecox' Campsis radicans 'Summer Snowfall®' (Takarazuka Variegated)' Campsis radicans 'University Hybrids' Campsis x tagliabuana
Campsis x tagliabuana 'Coccinea' Campsis x tagliabuana 'Golden Treasure™' (Takarazuka Gold)' Campsis x tagliabuana 'Mme. Galen' (Madame Galen)' Canna 'Aida'
Canna 'Ambassador' Canna 'Australia' Canna 'Bengal Tiger' (Pretoria)' Canna 'Black Knight'
Canna 'Brandywine' Canna 'Cap Camarata' Canna 'Chanteclerc' Canna 'City of Portland'
Canna 'Cleopatra' Canna 'Cleopatra' Canna 'Conestoga' Canna 'Confetti'
Canna 'Delaware' Canna 'Dollar' Canna 'Durban' Canna 'Emblem'
Canna 'Fireside' Canna 'Futurity Pink' Canna 'Futurity Red' Canna 'Futurity Yellow'
Canna 'Grande' Canna 'Independence' Canna 'Intrigue' Canna 'Kansas City'
Canna 'King Humbert Yellow' Canna 'King Humbert' Canna 'La Garoule' Canna 'Liberty™ Bugle Boy'
Canna 'Liberty™ Pink' Canna 'Liberty™ Scarlet' Canna 'Liberty™ Sun' Canna 'Louis Cayeau'
Canna 'Matador' Canna 'Omega' Canna 'Panache' Canna 'Pink Beauty'
Canna 'Pink Sunburst' Canna 'Red Stripe' Canna 'Red Velvet' Canna 'Richard Wallace'
Canna 'Stadt Feltbach' Canna 'Stuttgart' Canna 'Talisman' Canna 'The President'
Canna 'Tropical Red' Canna 'Tropical Rose' Canna 'Tropicana Dwarf Pink' Canna 'Tropicana Dwarf Red'
Canna 'Tropicanna Black™' (Canlon)' Canna 'Tropicanna Gold™' (Mactro)' Canna 'Tropicanna™' (Phaison)' Canna 'Tropicanna™' (Phaison)'
Canna 'Wyoming' Canna flaccida Canna glauca Canna hybrid
Canna indica Canna indica Canna iridiflora 'Ehemannii' (Eagmannii)' Canna x generalis
Capsicum annuum 'Black Pearl' Capsicum annuum 'Black Pearl' Capsicum annuum 'Bulgarian Carrot' Capsicum annuum 'Caribbean Red'
Capsicum annuum 'Chilly Chili' Capsicum annuum 'Conchos' Capsicum annuum 'Fireworks' Capsicum annuum 'Holiday Cheer'
Capsicum annuum 'Holiday Flame' Capsicum annuum 'Hot Bed' Capsicum annuum 'Korona' Capsicum annuum 'Pretty in Purple'
Capsicum annuum 'Rainbow' Capsicum annuum 'Serrano Del Sol' Capsicum annuum 'Super Chili' Capsicum annuum 'Teno'
Capsicum annuum 'Tequila' Capsicum annuum 'Treasures Red' Capsicum annuum 'Triton' Capsicum annuum 'Variegata'
Caragana arborescens Caragana arborescens 'Lorbergii' Caragana arborescens 'Nana' Caragana arborescens 'Pendula'
Caragana arborescens 'Plume' Caragana arborescens 'Sutherland' Caragana arborescens 'Tidy' Caragana arborescens 'Walker'
Caragana aurantiaca Caragana frutex Caragana frutex 'Globosa' Caragana maximowicziana
Caragana microphylla Caragana pygmaea Caragana sinica Cardamine (Dentaria) diphylla
Cardamine (Dentaria) diphylla 'Eco Moonlight' Cardamine waldsteinii Cardiocrinum giganteum Cardiospermum halicacabum
Carex 'Silver Curls' Carex aquatilis Carex berggrenii Carex buchananii
Carex buchananii Carex ciliatomarginata (siderostrica) Carex ciliatomarginata (siderostrica) 'Variegata' Carex comans
Carex comans 'Bronze' Carex comans 'Frosted Curls' Carex comans 'Milk Chocolate' Carex comosa
Carex conica Carex conica 'Marginata' Carex conica 'Variegata' Carex elata
Carex elata Carex elata 'Aurea' Carex elata 'Bowles Golden' Carex elata 'Knightshaye's'
Carex flagellifera Carex glauca (flacca) Carex glauca (flacca) Carex glauca (flacca) 'Bias'
Carex grayi Carex lasiocarpa Carex morrowii Carex morrowii 'Goldband' (Aurea-variegata)'
Carex morrowii 'Ice Dance' Carex morrowii 'Marginata' Carex morrowii 'Silver Strike' Carex morrowii 'Variegata'
Carex morrowii var. temnolepis 'Silk Tassel' Carex muskingumensis Carex muskingumensis Carex muskingumensis 'Oehme'
Carex muskingumensis 'Sentry'' (Wachtposten)' Carex oshimensis (hachijoensis) 'Gold Strike' Carex pendula Carex pennsylvanica
Carex phyllocephala 'Sparkler' Carex plantaginea Carex stricta Carex testacea
Carica papaya Carissa macrocarpa Carpinus betulus Carpinus betulus 'Albo-variegata'
Carpinus betulus 'Aspleniifolia' Carpinus betulus 'Columnaris' Carpinus betulus 'Fastigiata' Carpinus betulus 'Franz Fontaine'
Carpinus betulus 'Globosa' Carpinus betulus 'Incisa' Carpinus betulus 'Monument' Carpinus betulus 'Pendula Dervaesii'
Carpinus betulus 'Pendula' Carpinus betulus 'Pinoccheo' Carpinus betulus 'Punctata' Carpinus betulus 'Purpurea'
Carpinus betulus 'Rogow' Carpinus betulus 'Variegata' Carpinus betulus 'Vienna Weeping' Carpinus betulus var. horizontalis
Carpinus betulus var. quercifolia Carpinus caroliniana Carpinus caroliniana 'Palisade' Carpinus caroliniana 'Pyramidalis'
Carpinus cordata Carpinus japonica Carpinus orientalis Carpobrotus deliciosus
Carpobrotus edulis Carthamus tinctorius 'Lasting Orange' Carum carvi Carya aquatica
Carya cordiformis Carya glabra Carya illinoinensis Carya laciniosa
Carya myristiciformis Carya ovata Carya pallida Carya tomentosa
Caryopteris incana Caryopteris incana Caryopteris incana 'Blue Billows' Caryopteris incana 'Candida'
Caryopteris incana 'Sunshine Blue™' (Jason)' Caryopteris x clandonensis Caryopteris x clandonensis Caryopteris x clandonensis 'Arthur Simmonds'
Caryopteris x clandonensis 'Arthur Simmonds' Caryopteris x clandonensis 'Azure' Caryopteris x clandonensis 'Azure' Caryopteris x clandonensis 'Blue Knoll'
Caryopteris x clandonensis 'Blue Mist' Caryopteris x clandonensis 'Blue Mist' Caryopteris x clandonensis 'Dark Knight' Caryopteris x clandonensis 'Dark Knight'
Caryopteris x clandonensis 'Ferndown' Caryopteris x clandonensis 'Ferndown' Caryopteris x clandonensis 'First Choice' Caryopteris x clandonensis 'Grand Bleu™' (Innoveris)'
Caryopteris x clandonensis 'Heavenly Blue' Caryopteris x clandonensis 'Heavenly Blue' Caryopteris x clandonensis 'Kew Blue' Caryopteris x clandonensis 'Kew Blue'
Caryopteris x clandonensis 'Longwood Blue' Caryopteris x clandonensis 'Longwood Blue' Caryopteris x clandonensis 'Petit Bleu™' (Minibleu)' Caryopteris x clandonensis 'Worcester Gold'
Caryopteris x clandonensis 'Worcester Gold' Castanea alnifolia Castanea crenata Castanea dentata
Castanea mollissima Castanea pumila Castanea sativa Castanea sativa 'Albo-marginata'
Castanea sativa 'Aureo-marginata' Catalpa bignonioides Catalpa bignonioides 'Aurea' Catalpa bignonioides 'Nana'
Catalpa bungei Catalpa fargesii Catalpa fargesii f. duclouxii Catalpa longissima
Catalpa ovata Catalpa speciosa Catalpa x erubescens Catalpa x erubescens 'Purpurea'
Catalpa x erubescens 'Victoria' Catananche caerulea Catananche caespitosum Catharanthus (Vinca) roseus 'Blue Pearl'
Catharanthus (Vinca) roseus 'Bourbon Street' Catharanthus (Vinca) roseus 'Carpet Series' Catharanthus (Vinca) roseus 'Grape Cooler™' Catharanthus (Vinca) roseus 'Icy Pink Cooler™'
Catharanthus (Vinca) roseus 'Lady in Pink' Catharanthus (Vinca) roseus 'Little Delicata' Catharanthus (Vinca) roseus 'Little Pinkie' Catharanthus (Vinca) roseus 'Magic Carpet'
Catharanthus (Vinca) roseus 'Mediterranean Cherry Red' Catharanthus (Vinca) roseus 'Mediterranean Series' Catharanthus (Vinca) roseus 'Nirvana™ Apricot' Catharanthus (Vinca) roseus 'Nirvana™ Burgundy'
Catharanthus (Vinca) roseus 'Nirvana™ Cascade Deep Pink' Catharanthus (Vinca) roseus 'Nirvana™ Cascade Lavender with Eye' Catharanthus (Vinca) roseus 'Nirvana™ Cascade Pink Splash' Catharanthus (Vinca) roseus 'Nirvana™ Cascade Pink'
Catharanthus (Vinca) roseus 'Nirvana™ Cascade Shell Pink' Catharanthus (Vinca) roseus 'Nirvana™ Cascade White' Catharanthus (Vinca) roseus 'Nirvana™ Lavender with Eye' Catharanthus (Vinca) roseus 'Nirvana™ Pink Blush'
Catharanthus (Vinca) roseus 'Nirvana™ Raspberry with Eye' Catharanthus (Vinca) roseus 'Nirvana™ Red' Catharanthus (Vinca) roseus 'Nirvana™ Rose' Catharanthus (Vinca) roseus 'Nirvana™ Violet'
Catharanthus (Vinca) roseus 'Nirvana™ White' Catharanthus (Vinca) roseus 'Pacifica Cherry Halo' Catharanthus (Vinca) roseus 'Pacifica Cherry Red' Catharanthus (Vinca) roseus 'Pacifica Dark Red'
Catharanthus (Vinca) roseus 'Pacifica Magenta Halo' Catharanthus (Vinca) roseus 'Pacifica Orchid Halo' Catharanthus (Vinca) roseus 'Pacifica Punch' Catharanthus (Vinca) roseus 'Pacifica Pure White'
Catharanthus (Vinca) roseus 'Pacifica Really Red' Catharanthus (Vinca) roseus 'Pacifica Red' Catharanthus (Vinca) roseus 'Pacifica Rose Halo' Catharanthus (Vinca) roseus 'Parasol'
Catharanthus (Vinca) roseus 'Peppermint Cooler™' Catharanthus (Vinca) roseus 'Pink Carpet' Catharanthus (Vinca) roseus 'Pretty in Pink' Catharanthus (Vinca) roseus 'Pretty in White'
Catharanthus (Vinca) roseus 'Raspberry Cooler™' Catharanthus (Vinca) roseus 'Red Cooler™' Catharanthus (Vinca) roseus 'Titan™ Polka Dot' Catharanthus (Vinca) roseus 'Titan™ Series'
Catharanthus (Vinca) roseus 'Trailing Pink Star' Catharanthus (Vinca) roseus 'Tropicana Apricot' Catharanthus (Vinca) roseus 'Tropicana Blush' Catharanthus (Vinca) roseus 'Tropicana Bright Eye'
Catharanthus (Vinca) roseus 'Tropicana Pink' Catharanthus (Vinca) roseus 'Tropicana Rose' Catharanthus (Vinca) roseus 'World Peace' Cattleya percivaliana
Cattleya x guatemalensis Caulophyllum thalictroides Cautleya spicata Ceanothus americanus
Ceanothus coeruleus Ceanothus ovatus Ceanothus x delilianus Ceanothus x delilianus 'Gloire de Versailles'
Ceanothus x pallidus Ceanothus x pallidus 'Ceres' Ceanothus x pallidus 'Marie Simon' Ceanothus x pallidus 'Perle Rose'
Ceanothus x pallidus 'Plenus' Ceanothus x pallidus 'Roseus' Cedrela sinensis Cedrus atlantica
Cedrus atlantica 'Argentea' Cedrus atlantica 'Aurea Robusta' Cedrus atlantica 'Aurea' Cedrus atlantica 'Fastigiata'
Cedrus atlantica 'Glauca Pendula' Cedrus atlantica 'Glauca' Cedrus deodara Cedrus deodara 'Kashmir'
Cedrus deodara 'Kingsville' Cedrus deodara 'Shalimar' Cedrus libani Cedrus libani 'Argentea'
Cedrus libani 'Pendula' Cedrus libani 'Sargentii' Cedrus libani var. brevifolia Cedrus libani var. stenocoma
Ceiba chodatii Ceiba crispiflora Ceiba pentandra 'Pancoastal' Ceibas insignis
Celastrus loeseneri Celastrus orbiculatus Celastrus scandens Celastrus scandens 'Indian Brave'
Celastrus scandens 'Indian Maiden' Celmisia angustifolia Celmisia coriacea Celmisia incana
Celmisia spectabilis Celosia argentea var. argentea Celosia cristata (argentea var. cristata) 'Bicolor Chief' Celosia cristata (argentea var. cristata) 'Fire Chief'
Celosia cristata (argentea var. cristata) 'Gold Chief' Celosia cristata (argentea var. cristata) 'Jewel Box Mix' Celosia cristata (argentea var. cristata) 'Jewel Box Red' Celosia cristata (argentea var. cristata) 'Jewel Box Rose'
Celosia cristata (argentea var. cristata) 'Red Chief' Celosia plumosa (argentea var. plumosus) 'Apricot Brandy' Celosia plumosa (argentea var. plumosus) 'Castle Series' Celosia plumosa (argentea var. plumosus) 'Fresh Look Orange'
Celosia plumosa (argentea var. plumosus) 'Kimono Yellow' Celosia plumosa (argentea var. plumosus) 'New Look' Celosia plumosa (argentea var. plumosus) 'Peach Glow' Celosia spicata (argentea var. spicata) 'Flamingo Feather'
Celosia spicata (argentea var. spicata) 'Pink Candle' Celosia spicata (argentea var. spicata) 'Purple Flamingo' Celtis australis Celtis jessoensis
Celtis laevigata Celtis laevigata 'All Seasons' Celtis laevigata x occidentalis 'Magnifica' Celtis occidentalis
Celtis occidentalis 'Chicagoland' Celtis occidentalis 'Delta' Celtis occidentalis 'Prairie Pride' Celtis occidentalis 'Windy City'
Celtis sinensis Centaurea americana Centaurea americana 'Aloha' Centaurea americana 'Jolly Joker'
Centaurea bella Centaurea cyanus Centaurea cyanus 'Black Gem' Centaurea cyanus 'Blue Bottle'
Centaurea cyanus 'Blue Diadem' Centaurea cyanus 'Dwarf Midget' Centaurea cyanus 'Emperor William' Centaurea cyanus 'Florence™ Series'
Centaurea cyanus 'Frosty' Centaurea cyanus 'Garnet' Centaurea cyanus 'Jubilee Gem' Centaurea cyanus 'Pinkie'
Centaurea cyanus 'Polka Dot' Centaurea cyanus 'Red Boy' Centaurea cyanus 'Snowman' Centaurea dealbata
Centaurea dealbata 'Steenbergii' Centaurea glastifolia Centaurea hypoleuca Centaurea hypoleuca 'John Coutts'
Centaurea macrocephala Centaurea montana Centaurea montana 'Alba' Centaurea Montana 'Amethyst in Snow'
Centaurea montana 'Grandiflora' Centaurea montana 'Ochroleuca' Centaurea montana 'Rosea' (Carnea)' Centaurea montana 'Violetta'
Centaurea moschata Centaurea moschata 'Antique Lace' Centaurea moschata 'Dairy Maid' Centaurea moschata 'Imperalis'
Centaurea moschata 'Lucida' Centaurea moschata 'The Bride' Centaurea nigra Centaurea nigra 'Rivularis'
Centaurea nigra 'Variegata' Centaurea pulchra Centaurea pulchra 'Major' Centaurea rigidifolia
Centaurea simplicicaulis Centaurea uniflora ssp. nervosa Centradenia ovata Centranthus ruber
Centranthus ruber var albus Centranthus ruber var. coccineus Centranthus ruber var. roseus Centratherum punctatum
Cephalanthus occidentalis Cephalanthus occidentalis Cephalanthus occidentalis Cephalaria gigantea (tatarica)
Cephalotaxus fortunei Cephalotaxus fortunei 'Prostrate Spreader' Cephalotaxus harringtonia Cephalotaxus harringtonia 'Duke Gardens'
Cephalotaxus harringtonia 'Fastigiata Aurea' Cephalotaxus harringtonia 'Fastigiata' Cephalotaxus harringtonia 'Fritz Huber' Cephalotaxus harringtonia 'Gnome'
Cephalotaxus harringtonia 'Korean Gold' Cephalotaxus harringtonia 'Mary Fleming' Cephalotaxus harringtonia 'Nana' Cephalotaxus harringtonia 'Prostrata'
Cephalotaxus harringtonia var. drupacea Cerastium biebersteinii Cerastium buisseri Cerastium tomentosum
Cerastium tomentosum Cerastium tomentosum 'Yo Yo' Cerastium tomentosum var. columnae Ceratostigma plumbaginoides
Ceratostigma willmottianum Cercidiphyllum japonicum Cercidiphyllum japonicum 'Amazing Grace' Cercidiphyllum japonicum 'Aureum'
Cercidiphyllum japonicum 'Heronswood Globe' Cercidiphyllum japonicum 'Pendulum' Cercidiphyllum magnificum f. pendulum Cercidiphyllum magnificum f. pendulum 'Morioka Weeping'
Cercis canadensis Cercis canadensis Cercis canadensis Cercis canadensis 'Ace of Hearts'
Cercis canadensis 'Alba' Cercis canadensis 'Appalachian Red' Cercis canadensis 'Dwarf White' Cercis canadensis 'Flame'
Cercis canadensis 'Forest Pansy' Cercis canadensis 'Hearts of Gold' Cercis canadensis 'Lavender Twist™' (Covey)' Cercis canadensis 'Little Woody'
Cercis canadensis 'Northland Strain' Cercis canadensis 'Pinkbud' Cercis canadensis 'Royal White' Cercis canadensis 'Rubye Atkinson'
Cercis canadensis 'Silver Cloud' Cercis canadensis 'Tennessee Pink' Cercis canadensis 'Withers Pink Charm' Cercis canadensis subsp. mexicana
Cercis canadensis subsp. texensis Cercis canadensis subsp. texensis 'Oklahoma' Cercis canadensis subsp. texensis 'Texas White' Cercis canadensis subsp. texensis 'Traveller'
Cercis chinensis Cercis chinensis 'Alba' Cercis chinensis 'avondale' Cercis chingii
Cercis gigantea Cercis occidentalis Cercis racemosa Cercis siliquastrum
Cercis yunnanensis Cercis yunnanensis 'Celestial Plum' Cereus hildmannianus Cerinthe major
Cestrum aurantiacum Cestrum elegans 'Rosea' Cestrum parqui Chaenomeles japonica
Chaenomeles speciosa Chaenomeles speciosa 'Apple Blossom' Chaenomeles speciosa 'Cameo' Chaenomeles speciosa 'Contorta'
Chaenomeles speciosa 'Crimson and Gold' Chaenomeles speciosa 'Hollandia' Chaenomeles speciosa 'Jet Trail' Chaenomeles speciosa 'Knap Hill Scarlet'
Chaenomeles speciosa 'Mandarin' Chaenomeles speciosa 'Minerva' Chaenomeles speciosa 'Nivalis' Chaenomeles speciosa 'Orange Delight'
Chaenomeles speciosa 'Red Chief' Chaenomeles speciosa 'Rowallane' Chaenomeles speciosa 'Scarff's Red' Chaenomeles speciosa 'Spitfire'
Chaenomeles speciosa 'Texas Scarlet' Chaenomeles speciosa 'Toyo-Nishiki' Chaenomeles x superba Chamaecyparis lawsoniana
Chamaecyparis nootkatensis Chamaecyparis nootkatensis 'Pendula' Chamaecyparis obtusa Chamaecyparis obtusa 'Crippsii'
Chamaecyparis obtusa 'Filicoides' Chamaecyparis obtusa 'Nana Gracilis' Chamaecyparis obtusa 'Nana' Chamaecyparis pisifera
Chamaecyparis pisifera 'Boulevard' ('Cyano Viridis')' Chamaecyparis pisifera 'Filifera Aurea' Chamaecyparis pisifera 'Filifera' Chamaecyparis pisifera 'Plumosa Aurea'
Chamaecyparis pisifera 'Plumosa' Chamaecyparis pisifera 'Squarrosa Minima' Chamaecyparis pisifera 'Squarrosa' Chamaecyparis thyoides
Chamaecyparis thyoides 'AA 102284' Chamaecyparis thyoides 'AA 129681' Chamaecyparis thyoides 'AA 13047' Chamaecyparis thyoides 'Andelyensis Meth Dwarf'
Chamaecyparis thyoides 'Andelyensis Nana' Chamaecyparis thyoides 'Andelyensis' Chamaecyparis thyoides 'Aqua-velva' Chamaecyparis thyoides 'Atrovirens'
Chamaecyparis thyoides 'Aurea' Chamaecyparis thyoides 'Blue Broom' Chamaecyparis thyoides 'Blue Sport' Chamaecyparis thyoides 'Compacta Glauca'
Chamaecyparis thyoides 'Conica' Chamaecyparis thyoides 'Dodd Form' Chamaecyparis thyoides 'Emily' Chamaecyparis thyoides 'Ericoides'
Chamaecyparis thyoides 'Georgia Form' Chamaecyparis thyoides 'Glauca Pendula' Chamaecyparis thyoides 'Glauca' Chamaecyparis thyoides 'Heatherbun'
Chamaecyparis thyoides 'Hopkinton' Chamaecyparis thyoides 'Hoveyi' Chamaecyparis thyoides 'Little Jamie' Chamaecyparis thyoides 'Maine Selection'
Chamaecyparis thyoides 'Meth Dwarf' Chamaecyparis thyoides 'Mobile Bay Form' Chamaecyparis thyoides 'Nana' Chamaecyparis thyoides 'Purple Heather'
Chamaecyparis thyoides 'Pygmaea' Chamaecyparis thyoides 'Pyramidata' Chamaecyparis thyoides 'Rachel' Chamaecyparis thyoides 'Raraflora'
Chamaecyparis thyoides 'Raulston Form' Chamaecyparis thyoides 'Red Star' Chamaecyparis thyoides 'Rubicon' Chamaecyparis thyoides 'Shiva'
Chamaecyparis thyoides 'Tom's Blue' Chamaecyparis thyoides 'Top Point' Chamaecyparis thyoides 'Variegata' Chamaecyparis thyoides 'Webb #1'
Chamaecyparis thyoides 'Webb #2' Chamaecyparis thyoides 'Webb Gold' Chamaecyparis thyoides var. henryae Chamaecytisus hirsutus
Chamaedaphne calyculata Chamaedaphne calyculata 'Nana' Chamaedaphne calyculata 'Verdant' Chamaedorea hooperiana 'King Maya®'
Chamaedorea metallica Chamaedorea seifrizii Chamaelirium luteum Chamaemelum nobile
Chamaemelum nobile Chamaemelum nobile 'Flora Plena' Chamelaucium uncinatum Chamelaucium uncinatum 'Cathy Sue'
Chamelaucium uncinatum 'Lady Stephany' Chasmanthium latifolium Chasmanthium latifolium Cheilanthes argentea
Chelidonium majus Chelidonium majus 'Flore Pleno' Chelone glabra Chelone glabra
Chelone lyonii Chelone obliqua Chelone obliqua 'Alba' Chelone obliqua 'Bethelii'
Chiastophyllum (Cotyledon simplicifolia) oppositifolium Chilopsis linearis Chilopsis linearis 'Alpine' Chilopsis linearis 'Burgundy'
Chilopsis linearis 'Marfa Lace' Chilopsis linearis 'Regal' Chilopsis linearis 'Tejas' Chimonanthus nitens
Chimonanthus praecox Chimonanthus praecox 'Grandiflorus' Chimonanthus praecox 'Luteus' Chimonanthus praecox 'Mangetsu'
Chimonanthus praecox var. concolor Chionanthus pygmaeus Chionanthus retusus Chionanthus retusus var. serrulatus
Chionanthus virginicus Chionanthus virginicus 'Floyd' Chionodoxa forbesii (luciliae) Chionodoxa forbesii (luciliae) 'Blue Giant'
Chionodoxa forbesii (luciliae) 'Pink Beauty' Chlorophytum amaniense (orchidantheroides) 'Fire Flash' Chlorophytum comosum 'Bonnie' Choisya ternata
Choisya ternata 'Aztec Pearl' Choisya ternata 'Sundance' Chorisia speciosa Chorizema cordata
Chrysanthemum (Ajania) pacificum Chrysanthemum (Ajania) pacificum 'Pink Ice' Chrysanthemum (Argyranthemum) foeniculaceum Chrysanthemum (Argyranthemum) foeniculaceum 'Annette'
Chrysanthemum (Argyranthemum) foeniculaceum 'Blue Haze' Chrysanthemum (Argyranthemum) foeniculaceum 'Jamaica Snowstorm' Chrysanthemum (Argyranthemum) foeniculaceum 'Manicaule' Chrysanthemum (Argyranthemum) foeniculaceum 'Pink Form'
Chrysanthemum (Argyranthemum) frutescens Chrysanthemum (Argyranthemum) frutescens 'Bright Carmine (Supalight)' Chrysanthemum (Argyranthemum) frutescens 'Bright Carmine (Supalight)' Chrysanthemum (Argyranthemum) frutescens 'Butterfly'
Chrysanthemum (Argyranthemum) frutescens 'Cobbitty Daisy® Sugar Baby' Chrysanthemum (Argyranthemum) frutescens 'Cobbitty Daisy® Summer Melody' Chrysanthemum (Argyranthemum) frutescens 'Comet Pink (Cobsing)' Chrysanthemum (Argyranthemum) frutescens 'Comet White (Cobwhite)'
Chrysanthemum (Argyranthemum) frutescens 'Dana' Chrysanthemum (Argyranthemum) frutescens 'Edelweiss' Chrysanthemum (Argyranthemum) frutescens 'Harvest Snow' Chrysanthemum (Argyranthemum) frutescens 'Jamaica Primrose'
Chrysanthemum (Argyranthemum) frutescens 'LaRita™ Compact White' Chrysanthemum (Argyranthemum) frutescens 'Lemon Delight' Chrysanthemum (Argyranthemum) frutescens 'Madeira™ Camara' Chrysanthemum (Argyranthemum) frutescens 'Madeira™ Sao Vincente'
Chrysanthemum (Argyranthemum) frutescens 'Margaret Lynch' Chrysanthemum (Argyranthemum) frutescens 'Mary Cheek' Chrysanthemum (Argyranthemum) frutescens 'Mary Wooten' Chrysanthemum (Argyranthemum) frutescens 'Midas Gold'
Chrysanthemum (Argyranthemum) frutescens 'Petite Pink' Chrysanthemum (Argyranthemum) frutescens 'Pink Champagne' Chrysanthemum (Argyranthemum) frutescens 'Quinta White' Chrysanthemum (Argyranthemum) frutescens 'Stars Pink'
Chrysanthemum (Argyranthemum) frutescens 'Summer Angel' Chrysanthemum (Argyranthemum) frutescens 'Summer Eyes' Chrysanthemum (Argyranthemum) frutescens 'Summer Pink' Chrysanthemum (Argyranthemum) frutescens 'Surprise Party'
Chrysanthemum (Argyranthemum) frutescens 'Vancouver' Chrysanthemum (Argyranthemum) frutescens 'Vera' Chrysanthemum (Argyranthemum) hybrids Chrysanthemum (Dendranthema x grandiflorum) x morifolium
Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Adonis Purple' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Amata Purple' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Amor Coral' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Amor Dark Pink'
Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Amor White' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Amor Yellow White' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Argos Orange' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Autumn Crescendo™ Bolero'
Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Autumn Crescendo™ Harmony' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Autumn Crescendo™ Rhumba' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Autumn Crescendo™ Samba' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Bobwhite White'
Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Bronze Elegans' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Caesar Bronze' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Calisto Pink' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Castor Yellow'
Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Cordelia Orange' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Crete White' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Cyclops Red' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Delphi Purple'
Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Echo Bronze' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Effie Purple' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Estrada Salmon' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Feniks Bronze'
Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Firecracker Yellow' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Florina Yellow' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Follies Pink' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Freya Salmon'
Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Gold Crest Yellow' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Gothic Purple' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Hermes Purple' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Ida Purple'
Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Iduna Bronze' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Jason White' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Jenny Wren Crimson' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Jenny Wren Red'
Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Juno Yellow' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Kassos Red' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Katelli Bronze' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Kepa Purple'
Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Killeen' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Luna Bronze' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Lyra Pink' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Maia Coral'
Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Manakin Red' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Mars Orange' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Michelle' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Minerva White'
Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Mylos Yellow' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Nighthawk Lemon' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Pluto Red' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Rio Dark Pink'
Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Roadrunner Bronze' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Ryan's Yellow' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Sirena Pink' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Tatoi Bronze'
Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Thetis Yellow' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Thor Orange' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Venus Purple' Chrysanthemum (Dendranthema x grandiflorum) x morifolium 'Zanthus Yellow'
Chrysanthemum (Dendranthema zawadskii) x rubellum Chrysanthemum (Dendranthema zawadskii) x rubellum 'Clara Curtis' Chrysanthemum (Dendranthema zawadskii) x rubellum 'Duchess of Edinburgh' Chrysanthemum (Dendranthema zawadskii) x rubellum 'Mary Stoker'
Chrysanthemum (Dendranthema zawadskii) x rubellum 'Paul Boissier' Chrysanthemum (Dendranthema) weyrichii 'Pink Bomb' Chrysanthemum (Dendranthema) x koreana 'Hillside Sheffield' Chrysanthemum (Dendranthema) x koreana 'Ryan's Daisy'
Chrysanthemum (Dendranthema) x koreana 'Single Apricot' Chrysanthemum (Leucanthemum) maximum 'Broadway Lights™' Chrysanthemum (Leucanthemum) maximum 'Broadway Lights™' Chrysanthemum (Leucanthemum) x superbum
Chrysanthemum (Leucanthemum) x superbum 'Aglaia' Chrysanthemum (Leucanthemum) x superbum 'Alaska' Chrysanthemum (Leucanthemum) x superbum 'Barbara Bush' Chrysanthemum (Leucanthemum) x superbum 'Becky'
Chrysanthemum (Leucanthemum) x superbum 'Christine Hagemann' Chrysanthemum (Leucanthemum) x superbum 'Cobham Gold' Chrysanthemum (Leucanthemum) x superbum 'Diener's Double' Chrysanthemum (Leucanthemum) x superbum 'Esther Reed'
Chrysanthemum (Leucanthemum) x superbum 'Everest' Chrysanthemum (Leucanthemum) x superbum 'Little Miss Muffet' Chrysanthemum (Leucanthemum) x superbum 'Little Princess' Chrysanthemum (Leucanthemum) x superbum 'Majestic'
Chrysanthemum (Leucanthemum) x superbum 'Marconi' Chrysanthemum (Leucanthemum) x superbum 'Mount Shasta' Chrysanthemum (Leucanthemum) x superbum 'Polaris' Chrysanthemum (Leucanthemum) x superbum 'Sedgewick'
Chrysanthemum (Leucanthemum) x superbum 'Silver Princess' Chrysanthemum (Leucanthemum) x superbum 'Snow Lady' Chrysanthemum (Leucanthemum) x superbum 'Snowcap' Chrysanthemum (Leucanthemum) x superbum 'Starburst'
Chrysanthemum (Leucanthemum) x superbum 'Switzerland' Chrysanthemum (Leucanthemum) x superbum 'White Knight' Chrysanthemum (Leucanthemum) x superbum 'Wirral Pride' Chrysanthemum (Leucanthemum) x superbum 'Wirral Supreme'
Chrysanthemum (Nipponanthemum) nipponicum Chrysanthemum (Tanacetum) coccineum Chrysanthemum (Tanacetum) coccineum 'Atrosanguineum' Chrysanthemum (Tanacetum) coccineum 'Brenda'
Chrysanthemum (Tanacetum) coccineum 'Duro' Chrysanthemum (Tanacetum) coccineum 'Eileen May Robinson' Chrysanthemum (Tanacetum) coccineum 'Evenglow' Chrysanthemum (Tanacetum) coccineum 'James Kelway'
Chrysanthemum (Tanacetum) coccineum 'Pink Bouquet' Chrysanthemum (Tanacetum) coccineum 'Red Dwarf' Chrysanthemum (Tanacetum) coccineum 'Red King' Chrysanthemum (Tanacetum) coccineum 'Robinson's Hybrids'
Chrysanthemum (Tanacetum) coccineum 'Sensation' Chrysanthemum (Tanacetum) coccineum 'Shirley Double' Chrysanthemum (Tanacetum) parthenium Chrysanthemum (Tanacetum) parthenium 'Album'
Chrysanthemum (Tanacetum) parthenium 'Aureum' Chrysanthemum (Tanacetum) parthenium 'Bridal Veil' Chrysanthemum (Tanacetum) parthenium 'Crispum' Chrysanthemum (Tanacetum) parthenium 'Flore Pleno'
Chrysanthemum (Tanacetum) parthenium 'Golden Ball' Chrysanthemum (Tanacetum) parthenium 'Rowallane' Chrysanthemum (Tanacetum) parthenium 'Roya' Chrysanthemum (Tanacetum) parthenium 'Santana'
Chrysanthemum (Tanacetum) parthenium 'Snowball' Chrysanthemum (Tanacetum) parthenium 'White Pompon' Chrysanthemum carinatum (tricolor) Chrysanthemum carinatum (tricolor) 'Dunnetti'
Chrysanthemum carinatum (tricolor) 'German Flag' Chrysanthemum carinatum (tricolor) 'Merry Mix' Chrysanthemum carinatum (tricolor) 'Monarch Court Jesters' Chrysanthemum carinatum (tricolor) 'Northern Star'
Chrysanthemum carinatum (tricolor) 'Polar Skies' Chrysanthemum coronarium Chrysanthemum coronarium 'Flore Plenum' Chrysanthemum coronarium 'Golden Gem'
Chrysanthemum coronarium 'Primrose Gem' Chrysanthemum segetum Chrysanthemum segetum 'Eastern Star' Chrysanthemum segetum 'Evening Star'
Chrysanthemum segetum 'Prado' Chrysogonum virginianum Chrysogonum virginianum Chrysogonum virginianum 'Alan Bush'
Chrysogonum virginianum 'Pierre' Chrysogonum virginianum 'Springbrook' Chrysogonum virginianum var. australe Chrysogonum virginianum var. australe 'Mark Viette'
Chrysogonum virginianum var. virginianum Chrysophyllum oliviforme Chrysothemis pulchella Cimicifuga acerina
Cimicifuga americana Cimicifuga racemosa Cimicifuga racemosa Cimicifuga racemosa 'Atropurpurea'
Cimicifuga racemosa 'Brunette' Cimicifuga racemosa var. cordifolia Cinnamomum camphora Cinnamomum camphora 'Majestic Beauty'
Circuta maculata Cirsium japonicum Cirsium japonicum 'Pink Beauty' Cirsium japonicum 'Red Beauty'
Cirsium rivulare Cirsium rivulare 'Atropurpureum' Cistus creticus Cistus ladanifer
Cistus laurifolius Cistus x corbariensis Cistus x corbariensis Cistus x dansereaui
Cistus x purpureus Cistus x purpureus Cladanthus amoena Cladrastis kentuckea (lutea)
Cladrastis kentuckea (lutea) 'Perkins Pink' Cladrastis kentuckea (lutea) 'Rosea' Cladrastis lutea Cladrastis platycarpa
Cladrastis sinensis Cladrastis sinensis 'China Rose' Clarkia (Godetia) amoena 'Grace Blush' Clarkia (Godetia) amoena 'Grace Mix'
Clarkia (Godetia) amoena 'Grace Red' Clarkia (Godetia) amoena 'Memoria' Clarkia (Godetia) amoena 'Satin Pink' Clarkia (Godetia) amoena 'Satin Red'
Clarkia (Godetia) amoena 'Satin Salmon' Claytonia caroliniana Claytonia megarhiza Claytonia virginica
Clematis 'Angelique™' Clematis 'Anna Louise™' Clematis 'Arctic Queen™' Clematis 'Betty Corning'
Clematis 'Blue Moon™' (Evrin)' Clematis 'Bourbon™' Clematis 'Cezanne™' Clematis 'Cezanne™'
Clematis 'Dorothy Walton' Clematis 'Double Blue' Clematis 'Dr. Ruppel' Clematis 'Ellenbank White'
Clematis 'Festoon Avant-Garde' Clematis 'Festoon Bonanza' Clematis 'Festoon Confetti' Clematis 'Festoon Vesuvius'
Clematis 'Fireworks' Clematis 'Franziska Marie™' Clematis 'Harlow Carr™' Clematis 'Hyde Hall™'
Clematis 'Josephine™' (Evijohil)' Clematis 'Mrs. W. Thompson' Clematis 'Multi Blue' Clematis 'Naku-Daken'
Clematis 'Niobe' Clematis 'Parisienne™' Clematis 'Picardy™' Clematis 'Picardy™'
Clematis 'Polish Spring' Clematis 'Proteus' Clematis 'Rosemoor™' Clematis 'Silver Moon'
Clematis 'Versailles™' Clematis 'Wisley™' Clematis albicoma Clematis armandii
Clematis armandii Clematis armandii 'Apple Blossom' Clematis armandii 'Apple Blossom' Clematis armandii 'Farquhariana'
Clematis armandii 'Snowdrift' Clematis cirrhosa Clematis fusca Clematis henryi
Clematis heracleifolia Clematis heracleifolia 'Cote D'Azur' Clematis heracleifolia 'Robert Briden' Clematis heracleifolia 'Wyevale Blue'
Clematis heracleifolia var. davidiana Clematis integrifolia Clematis integrifolia 'Alba' Clematis integrifolia 'Bergeronii'
Clematis integrifolia 'Hendersonii' Clematis integrifolia 'Olgae' Clematis integrifolia 'Pastel Blue' Clematis integrifolia 'Rosea'
Clematis integrifolia 'Tapestry' Clematis macropetala Clematis macropetala 'Blue Bird' Clematis macropetala 'Markham's Pink'
Clematis montana Clematis montana 'Alexander' Clematis montana 'Elizabeth' Clematis montana 'Elizabeth'
Clematis montana 'Grandiflora' Clematis montana 'Sericea' Clematis montana 'Superba' Clematis montana 'Tetrarose'
Clematis montana var. rubens Clematis montana var. rubens Clematis montana var. wilsonii Clematis ochroleuca
Clematis orientalis Clematis recta Clematis recta 'Purpurea' Clematis rehderiana
Clematis sieboldii Clematis stans Clematis tangutica Clematis tangutica
Clematis tangutica 'Bill MacKenzie' Clematis tangutica 'Bill MacKenzie' Clematis tangutica 'Cory' Clematis terniflora (maximowicziana) (paniculata)
Clematis terniflora (maximowicziana) (paniculata) Clematis terniflora (maximowicziana) (paniculata) Clematis texensis Clematis texensis
Clematis texensis 'Duchess of Albany' Clematis texensis 'Duchess of Albany' Clematis texensis 'Major' Clematis virginiana
Clematis vitalba Clematis vitalba Clematis viticella Clematis viticella 'Abundance'
Clematis viticella 'Alba Luxurians' Clematis viticella 'Kermesina' Clematis viticella 'Little Nell' Clematis viticella 'Nana'
Clematis viticella 'Plena' Clematis viticella 'Royal Velours' Clematis viticella 'Rubra' Clematis x durandii
Clematis x eriostemon 'Hendersonii' Clematis x jackmanii Clematis x jackmanii Clematis x jackmanii 'Alba'
Clematis x jackmanii 'Ascotiensis' Clematis x jackmanii 'Ascotiensis' Clematis x jackmanii 'Barbara Dibley' Clematis x jackmanii 'Barbara Jackman'
Clematis x jackmanii 'Beauty of Worcester' Clematis x jackmanii 'Bees Jubilee' Clematis x jackmanii 'Bees Jubilee' Clematis x jackmanii 'Bell of Woking'
Clematis x jackmanii 'Bell of Woking' Clematis x jackmanii 'Candida' Clematis x jackmanii 'Comtesse de Bouchard' Clematis x jackmanii 'Comtesse de Bouchard'
Clematis x jackmanii 'Crimson King' Clematis x jackmanii 'Crimson Star' Clematis x jackmanii 'Daniel Deronda' Clematis x jackmanii 'Duchess of Edinburgh'
Clematis x jackmanii 'Duchess of Edinburgh' Clematis x jackmanii 'Duchess of Sutherland' Clematis x jackmanii 'Duchess of Sutherland' Clematis x jackmanii 'Elsa Spath'
Clematis x jackmanii 'Elsa Spath' Clematis x jackmanii 'Ernest Markham' Clematis x jackmanii 'Fairy Queen' Clematis x jackmanii 'Gillian Blades'
Clematis x jackmanii 'Gypsy Queen' Clematis x jackmanii 'Hagley Hybrid' Clematis x jackmanii 'Hagley Hybrid' Clematis x jackmanii 'Henryi'
Clematis x jackmanii 'Huldine' Clematis x jackmanii 'Huldine' Clematis x jackmanii 'Kathleen Dunford' Clematis x jackmanii 'Kathleen Wheeler'
Clematis x jackmanii 'King Edward VII' Clematis x jackmanii 'King George V' Clematis x jackmanii 'Lady Betty Balfour' Clematis x jackmanii 'Lady Northcliffe'
Clematis x jackmanii 'Lasurstern' Clematis x jackmanii 'Lasurstern' Clematis x jackmanii 'Lincoln Star' Clematis x jackmanii 'Lord Neville'
Clematis x jackmanii 'Lord Neville' Clematis x jackmanii 'Madame Baron Veillard' Clematis x jackmanii 'Madame Baron Veillard' Clematis x jackmanii 'Madame Cholmondeley'
Clematis x jackmanii 'Madame Cholmondeley' Clematis x jackmanii 'Madame Edouard Andre' Clematis x jackmanii 'Madame Edouard Andre' Clematis x jackmanii 'Madame Julia Correvon'
Clematis x jackmanii 'Madame Julia Correvon' Clematis x jackmanii 'Marcel Moser' Clematis x jackmanii 'Marcel Moser' Clematis x jackmanii 'Margot Koster'
Clematis x jackmanii 'Marie Boisselot' Clematis x jackmanii 'Maureen' Clematis x jackmanii 'Miss Bateman' Clematis x jackmanii 'Miss Bateman'
Clematis x jackmanii 'Mrs. N. Thompson' Clematis x jackmanii 'Mrs. Spencer Castle' Clematis x jackmanii 'Nelly Moser' Clematis x jackmanii 'Nelly Moser'
Clematis x jackmanii 'Percy Picton' Clematis x jackmanii 'Perle d'Azur' Clematis x jackmanii 'Prins Hendrik' Clematis x jackmanii 'Ramona'
Clematis x jackmanii 'Rubra' Clematis x jackmanii 'Star of India' Clematis x jackmanii 'Star of India' Clematis x jackmanii 'Superba'
Clematis x jackmanii 'The President' Clematis x jackmanii 'The President' Clematis x jackmanii 'Venosa Violacea' Clematis x jackmanii 'Victoria'
Clematis x jackmanii 'Ville de Lyon' Clematis x jackmanii 'Ville de Lyon' Clematis x jackmanii 'Violet Charm' Clematis x jackmanii 'Vyvyan Pennell'
Clematis x jackmanii 'W.E. Gladstone' Clematis x jackmanii 'William Kennett' Clematis x jackmanii 'William Kennett' Cleome hassleriana 'Helen Campbell'
Cleome hassleriana 'Linde Armstrong' Cleome hassleriana 'Mixed' Cleome hassleriana 'Purple Queen' Cleome hassleriana 'Sparkler™ Blush'
Cleome hassleriana 'Sparkler™ Lavender' Cleome hassleriana 'Sparkler™ Rose' Cleome hassleriana 'Sparkler™ Series' Cleome hassleriana 'Sparkler™ White'
Clerodendrum aculeatum Clerodendrum bungei Clerodendrum chinense Clerodendrum indicum
Clerodendrum indicum Clerodendrum minahassae Clerodendrum nepalensis Clerodendrum paniculatum
Clerodendrum quadriloculare Clerodendrum speciosissimum Clerodendrum speciosissimum Clerodendrum splendens
Clerodendrum thomsoniae Clerodendrum trichotomum Clerodendrum trichotomum Clerodendrum trichotomum 'Variegata'
Clerodendrum trichotomum var. fargesii Clerodendrum ugandense Clerodendrum ugandense Clerodendrum wallichii
Clerodendrum x speciosum Clerodendrum x speciosum Clethra acuminata Clethra acuminata 'Old Spice'
Clethra alnifolia Clethra alnifolia Clethra alnifolia 'Anne Bidwell' Clethra alnifolia 'Arnold Arboretum Selection'
Clethra alnifolia 'Chattanooga' Clethra alnifolia 'Compacta' Clethra alnifolia 'Creel's Calico' Clethra alnifolia 'Fern Valley Late Sweet'
Clethra alnifolia 'Fern Valley Pink' Clethra alnifolia 'Hokie Pink' Clethra alnifolia 'Hummingbird' Clethra alnifolia 'Nova Scotia'
Clethra alnifolia 'Paniculata' Clethra alnifolia 'Pink Spires' Clethra alnifolia 'Rosea' Clethra alnifolia 'Ruby Spice'
Clethra alnifolia 'September Beauty' Clethra alnifolia var. tomentosa Clethra arborea Clethra barbinervis
Clethra delavayi Clethra fargesii Clethra monostachya Clethra pringlei
Clethra tomentosa Cleyera japonica Cleyera japonica 'Fortunei' Cleyera japonica 'Tricolor'
Clianthus formosa Clianthus puniceus Cliftonia monophylla Clintonia andrewsiana
Clintonia borealis Clintonia umbellulata Clitoria ternatea Clivia miniata
Clivia miniata Clivia nobilis Clusia lanceolata Clusia rosea
Clytostoma callistegioides Cobaea scandens Coccothrinax argentea Cocculus carolinus
Cochliostema odoratissimum Cochlospermum vitifolium Cochlospermum vitifolium 'Plenum' Codiaeum variegatum
Codonopsis cardiophylla Codonopsis clematidea Codonopsis ovata Colchicum
Colchicum 'Autumn Queen' Colchicum 'Lilac Wonder' Colchicum 'The Giant' Colchicum 'Violet Queen'
Colchicum 'Waterlily' Colchicum autumnale Colchicum autumnale 'Alboplenum' Colchicum autumnale 'Album'
Colchicum autumnale 'Pleniflorum' Colchicum byzantinum Colchicum luteum Colchicum speciosum
Colchicum speciosum 'Album' Colchicum speciosum 'Maximum' Collinsonia verticillata Collomia grandiflora
Colocasia esculenta (antiquorum) Colocasia esculenta (antiquorum) Colocasia esculenta (antiquorum) 'Fontanesii' Colocasia esculenta (antiquorum) 'Illustris'
Colocasia esculenta (antiquorum) 'Jet Black Wonder' Colocasia esculenta (antiquorum) 'Nancy's Revenge' Colocasia jensii Colquhounia coccinea
Colutea arborescens Colutea arborescens 'Bullata' Colutea arborescens 'Copper Beauty' Colutea arborescens 'Crispa'
Colutea x media Colvillea racemosa Combretum grandiflorum Combretum rotundifolium
Comptonia peregrina Congea tomentosa Conospermum brownii Conostylis candicans
Consolida (delphinium) ambigua Convallaria majalis Convallaria majalis Convolvulus cneorum
Convolvulus sabatius (mauritanicus) Convolvulus sabatius (mauritanicus) 'Baby Moon' Convolvulus sabatius (mauritanicus) 'Full Moon' Convolvulus tricolor
Convolvulus tricolor 'Blue Ensign' Convolvulus tricolor 'Cambridge Blue' Convolvulus tricolor 'Red Ensign' Convolvulus tricolor 'Rose Ensign'
Convolvulus tricolor 'Royal Ensign' Coptis laciniata Cordia boissieri Cordia lutea
Cordia sebestena Cordia superba Cordyline australis Cordyline australis 'atropurpurea'
Cordyline australis 'Peko' Cordyline australis 'Red Sensation' Cordyline australis 'Red Star' Cordyline banksii
Cordyline terminalis (fruticosa) Cordyline terminalis (fruticosa) 'Sundance' Coreopsis 'Autumn Blush' Coreopsis 'Créme Brulee'
Coreopsis 'Limerock Passion' Coreopsis 'Sunny Day' Coreopsis auriculata Coreopsis auriculata 'Nana'
Coreopsis auriculata 'Superba' Coreopsis grandiflora Coreopsis grandiflora 'Badengold' Coreopsis grandiflora 'Domino'
Coreopsis grandiflora 'Early Sunrise' Coreopsis grandiflora 'Early Sunrise' Coreopsis grandiflora 'Rising Sun' Coreopsis grandiflora 'Ruby Throat'
Coreopsis grandiflora 'Schnittgold' Coreopsis grandiflora 'Sunburst' Coreopsis grandiflora 'Sunfire' Coreopsis grandiflora 'Sunray'
Coreopsis lanceolata Coreopsis lanceolata 'Baby Sun' (Sonnenkind)' Coreopsis lanceolata 'Brown Eyes' Coreopsis lanceolata 'Goldfink'
Coreopsis lanceolata 'Sundancer' Coreopsis leavenworthii Coreopsis pubescens 'Sunshine Superman' Coreopsis rosea
Coreopsis rosea 'Limerock Ruby' Coreopsis tinctoria Coreopsis tinctoria 'Red Wonder' Coreopsis verticillata
Coreopsis verticillata 'Golden Showers' Coreopsis verticillata 'Grandiflora' Coreopsis verticillata 'Moonbeam' Coreopsis verticillata 'Zagreb'
Coriandrum sativum Coriandrum sativum Cornus alba Cornus alba 'Alleman's Compact'
Cornus alba 'Argenteo-Marginata (Elegantissima)' Cornus alba 'Atrosanguinea' Cornus alba 'Aurea' Cornus alba 'Behnschii'
Cornus alba 'Bud's Yellow' Cornus alba 'Gouchaultii' Cornus alba 'Ivory Halo™' (Bailhalo)' Cornus alba 'Kesselringii'
Cornus alba 'Siberian Pearls' Cornus alba 'Sibirica Bloodgood' Cornus alba 'Sibirica Red Gnome™' Cornus alba 'Sibirica Ruby'
Cornus alba 'Sibirica Variegata' Cornus alba 'Sibirica' Cornus alba 'Spaethii' Cornus alba 'Variegata'
Cornus alba 'Westonbirt' Cornus alternifolia Cornus alternifolia 'Argentea' Cornus amomum
Cornus angustata (kousa var. angustata) Cornus angustata (kousa var. angustata) 'Prodigy™' Cornus asperifolia Cornus asperifolia var. drummondii
Cornus canadensis Cornus canadensis Cornus canadensis 'Downeaster' Cornus capitata
Cornus capitata 'Mountain Moon' Cornus capitata ssp. emeiensis Cornus capitata ssp. emeiensis 'Summer Passion' Cornus chinensis
Cornus controversa Cornus controversa 'June Snow' Cornus controversa 'Variegata' Cornus coreana
Cornus florida Cornus florida 'Abundance' Cornus florida 'Autumn Gold' Cornus florida 'Barton'
Cornus florida 'Big Bouquet' Cornus florida 'Big Giant' Cornus florida 'Big Girl' Cornus florida 'Bonnie'
Cornus florida 'Boyd's Willowleaf' Cornus florida 'Cherokee Brave®' (Comco #1)' Cornus florida 'Cherokee Daybreak' Cornus florida 'Cherokee Maiden'
Cornus florida 'Cherokee Princess' (White Princess)' Cornus florida 'Cloud 9' Cornus florida 'Cloud 9' Cornus florida 'Compacta'
Cornus florida 'Fastigiata' Cornus florida 'Fayetteville Columnar' Cornus florida 'First Lady' Cornus florida 'Fragrant Cloud'
Cornus florida 'Gigantea' Cornus florida 'Golden Nugget' Cornus florida 'Green Glow' Cornus florida 'Hillenmeyer'
Cornus florida 'Hohmann's Gold' Cornus florida 'Imperial White' Cornus florida 'Magnifica' Cornus florida 'Mary Ellen'
Cornus florida 'Miss Marion' Cornus florida 'Moon' Cornus florida 'Multibracteata' Cornus florida 'Mystery'
Cornus florida 'New Hampshire' Cornus florida 'Ozark Spring' Cornus florida 'Pendula' Cornus florida 'Plena'
Cornus florida 'Pluribracteata' Cornus florida 'Poinsett' Cornus florida 'President Ford' Cornus florida 'Pygmaea'
Cornus florida 'Rainbow' (Marzelli)' Cornus florida 'Salicifolia' Cornus florida 'September Dog' Cornus florida 'Spring Grove®' (Growflor)'
Cornus florida 'Springtime' Cornus florida 'Steele's Fastigiate' Cornus florida 'Sterling Silver' Cornus florida 'Tricolor'
Cornus florida 'Variegata' Cornus florida 'Weaver's White' Cornus florida 'Welch's Bay Beauty' Cornus florida 'Welchii'
Cornus florida 'White Bouquet' Cornus florida 'White Cloud' Cornus florida 'White Giant' Cornus florida 'Willsii'
Cornus florida 'Wonderberry' Cornus florida 'World's Fair' Cornus florida f. xanthocarpa Cornus florida subsp. urbiniana
Cornus florida var. pringlei Cornus florida var. rubra Cornus florida var. rubra 'American Beauty Red' Cornus florida var. rubra 'Andy Hart'
Cornus florida var. rubra 'Apple Blossom' Cornus florida var. rubra 'Belmont Pink' Cornus florida var. rubra 'Cherokee Chief' Cornus florida var. rubra 'Cherokee Sunset™'
Cornus florida var. rubra 'De Kalb Red' Cornus florida var. rubra 'October Glory' Cornus florida var. rubra 'Pink Autumn' Cornus florida var. rubra 'Pink Flame'
Cornus florida var. rubra 'Pink Sachet' Cornus florida var. rubra 'Prairie Pink' Cornus florida var. rubra 'Prosser' Cornus florida var. rubra 'Purple Glory'
Cornus florida var. rubra 'Red Beauty' Cornus florida var. rubra 'Red Cloud' Cornus florida var. rubra 'Red Giant' Cornus florida var. rubra 'Reddy'
Cornus florida var. rubra 'Redleaf' Cornus florida var. rubra 'Rich-red' Cornus florida var. rubra 'Roberts Pink' Cornus florida var. rubra 'Rose Valley'
Cornus florida var. rubra 'Royal Red' Cornus florida var. rubra 'Spring Song' Cornus florida var. rubra 'Stokes Pink' Cornus florida var. rubra 'Sweetwater Red'
Cornus florida var. rubra 'Welch's Junior Miss' Cornus florida var. rubra 'Williams Red' Cornus foemina Cornus kousa
Cornus kousa 'Aget' Cornus kousa 'Akabana' Cornus kousa 'Amber' Cornus kousa 'Autumn Rose'
Cornus kousa 'Avalanche' Cornus kousa 'Baby Splash' Cornus kousa 'Beni Fuji' Cornus kousa 'Big Apple'
Cornus kousa 'Bodnant' Cornus kousa 'Bon Fire' Cornus kousa 'Bush's Pink' Cornus kousa 'Camden'
Cornus kousa 'Cedar Ridge Select' Cornus kousa 'China Girl' Cornus kousa 'Doubloon' Cornus kousa 'Dr. Bump'
Cornus kousa 'Dwarf Pink' Cornus kousa 'Ed Mezitt' Cornus kousa 'Elizabeth Lustgarten' Cornus kousa 'Elmwood Weeper'
Cornus kousa 'Endurance' Cornus kousa 'Fanfare' Cornus kousa 'Gay Head' Cornus kousa 'Girard's Nana'
Cornus kousa 'Gold Cup' Cornus kousa 'Gold Star' Cornus kousa 'Greensleeves' Cornus kousa 'Heart Throb®' (Schmred)'
Cornus kousa 'Highland' Cornus kousa 'Julian' Cornus kousa 'July Jubilee' Cornus kousa 'Kirkpatrick's Weeping'
Cornus kousa 'Kordes' Cornus kousa 'Little Beauty' Cornus kousa 'Luce' Cornus kousa 'Lustgarten Weeping'
Cornus kousa 'Madame Butterfly I' Cornus kousa 'Madame Butterfly II' Cornus kousa 'Marble' Cornus kousa 'Moonbeam'
Cornus kousa 'Moonlight' Cornus kousa 'National' Cornus kousa 'Nell Monk' Cornus kousa 'New Red'
Cornus kousa 'Pollywood' Cornus kousa 'Prolific' Cornus kousa 'Radiant Rose' Cornus kousa 'Raulston Selection'
Cornus kousa 'Repeat Bloomer' Cornus kousa 'Repeat' Cornus kousa 'Rochester' Cornus kousa 'Rosabella'
Cornus kousa 'Rubra' Cornus kousa 'Satomi' Cornus kousa 'Schmetterling' Cornus kousa 'Select'
Cornus kousa 'Silver Cup' Cornus kousa 'Silverstar' Cornus kousa 'Snow Flake' Cornus kousa 'Snowbird'
Cornus kousa 'Snowboy' Cornus kousa 'Southern Cross' Cornus kousa 'Speciosa' Cornus kousa 'Spinners'
Cornus kousa 'Square Dance' Cornus kousa 'Steeple' Cornus kousa 'Summer Games' Cornus kousa 'Summer Majesty'
Cornus kousa 'Summer Stars' Cornus kousa 'Sunsplash' Cornus kousa 'Temple Jewel' Cornus kousa 'Ticknor's Choice'
Cornus kousa 'Trinity Star' Cornus kousa 'Tripple Crown' Cornus kousa 'Twinkle' Cornus kousa 'Variegata'
Cornus kousa 'Victory' Cornus kousa 'Weaver's Weeping' Cornus kousa 'Weisse Fontane' Cornus kousa 'Wilton'
Cornus kousa 'Wolf Eyes' Cornus kousa 'Xanthocarpa' Cornus kousa var. chinensis Cornus kousa var. chinensis 'Blue Shadow'
Cornus kousa var. chinensis 'Milky Way Select' Cornus kousa var. chinensis 'Milky Way' Cornus kousa x c. capitata 'Norman Hadden' Cornus kousa x c. capitata 'Porlock'
Cornus macrophylla Cornus mas Cornus mas 'Alba' Cornus mas 'Aurea'
Cornus mas 'Flava' Cornus mas 'Golden Glory' Cornus mas 'Hillier's Upright' Cornus mas 'Macrocarpa'
Cornus mas 'Nana' Cornus mas 'Pyramidalis' Cornus mas 'Redstone' Cornus mas 'Spring Glow'
Cornus mas 'Spring Grove' Cornus mas 'Spring Sun' Cornus mas 'Variegata' Cornus nuttallii
Cornus nuttallii 'Corigo Giant' Cornus nuttallii 'Eddie's White Wonder' Cornus nuttallii 'Goldspot' Cornus obliqua
Cornus officinalis Cornus officinalis 'Issai Minari' Cornus officinalis 'Kintoki' Cornus racemosa
Cornus racemosa 'Geauga®' (Geazam)' Cornus racemosa 'Geauga®' (Geazam)' Cornus racemosa 'Mahoning™' (Mahzam)' Cornus racemosa 'Muskingum®' (Muszam)'
Cornus racemosa 'Slavins Dwarf' (Slavinii)' Cornus sanguinea Cornus sanguinea 'Atrosanguinea' Cornus sanguinea 'Midwinter Fire'
Cornus sanguinea 'Variegata' Cornus sanguinea 'Viridissima' Cornus sanguinea 'Winter Flame' (Winter Beauty)' Cornus sericea (stolonifera)
Cornus sericea (stolonifera) 'Alleman's Dwarf' Cornus sericea (stolonifera) 'Arctic Fire™' (Farrow)' Cornus sericea (stolonifera) 'Cardinal' Cornus sericea (stolonifera) 'Cardinal'
Cornus sericea (stolonifera) 'Flaviramea' Cornus sericea (stolonifera) 'Isanti' Cornus sericea (stolonifera) 'Kelsey's Dwarf' Cornus sericea (stolonifera) 'Nitida'
Cornus sericea (stolonifera) 'Silver and Gold' Cornus sericea (stolonifera) 'Sunshine' Cornus sericea (stolonifera) 'White Gold' Cornus sericea f. baileyi
Cornus sericea var. coloradensis Cornus sericea var. coloradensis 'Cheyenne' Cornus walteri Cornus x rutgersensis 'Aurora™' (Rutban)'
Cornus x rutgersensis 'Celestial™' ('Galaxy') (Rutdan)' Cornus x rutgersensis 'Constellation®' (Rutcan)' Cornus x rutgersensis 'Ruth Ellen™' (Rutlan)' Cornus x rutgersensis 'Stardust™' (Rutfan)'
Cornus x rutgersensis 'Stellar Pink®' (Rutgan)' Corokia cotoneaster Corokia x virgata Cortaderia selloana
Cortaderia selloana 'Bertini' Cortaderia selloana 'Carminea Rendatleri' Cortaderia selloana 'Carnea' Cortaderia selloana 'Gold Band' (Aureo-lineata)'
Cortaderia selloana 'Ivory Feathers®' (Pumila)' Cortaderia selloana 'Marabout' Cortaderia selloana 'Purpurea' Cortaderia selloana 'Rosea'
Cortaderia selloana 'Silver Stripe' (Albo-lineata)' Cortaderia selloana 'Sunningdale Silver' Cortaderia selloana 'Violacea' Corydalis cheilanthifolia
Corydalis flexuosa Corydalis flexuosa 'Blackberry Wine' Corydalis flexuosa 'Blue Panda' Corydalis flexuosa 'China Blue'
Corydalis flexuosa 'Pere David' Corydalis lutea Corydalis lutea 'Alba' Corydalis sempervirens
Corydalis solida Corydalis solida 'George Baker' Corydalis wendelboi Corylopsis glabrescens
Corylopsis glabrescens 'March Jewel' Corylopsis gotoana Corylopsis pauciflora Corylopsis platypetala
Corylopsis sinensis var. calvescens Corylopsis spicata Corylopsis veitchiana Corylopsis willmottiae
Corylopsis willmottiae 'Spring Purple' Corylus americana Corylus americana 'Bixby' Corylus americana 'Buchanan'
Corylus americana 'Potomac' Corylus americana 'Reed' Corylus avellana Corylus avellana 'Aurea'
Corylus avellana 'Contorta' Corylus avellana 'Fuscorubra' Corylus avellana 'Heterophylla' Corylus avellana 'Pendula'
Corylus avellana 'Rote Zeller' Corylus colurna Corylus cornuta Corylus cornuta 'Manoka'
Corylus cornuta 'Peoaka' Corylus maxima 'Purpurea' Corymbia ficifolia Cosmos atrosanguineus
Cosmos atrosanguineus 'Ace of Spades' Cosmos bipinnatus Cosmos bipinnatus 'Candy Stripe' Cosmos bipinnatus 'Daydream'
Cosmos bipinnatus 'Dazzler' Cosmos bipinnatus 'Early Sensation' Cosmos bipinnatus 'Early Wonder' Cosmos bipinnatus 'Gazebo'
Cosmos bipinnatus 'Imperial Pink' Cosmos bipinnatus 'Pied Piper Red' Cosmos bipinnatus 'Psyche' Cosmos bipinnatus 'Seashell Pink'
Cosmos bipinnatus 'Seashell' Cosmos bipinnatus 'Seashells Mix' Cosmos bipinnatus 'Sensation' Cosmos bipinnatus 'Sonata™ Carmine'
Cosmos bipinnatus 'Sonata™ White' Cosmos bipinnatus 'Versailles' Cosmos sulphureus Cosmos sulphureus 'Bright Lights'
Cosmos sulphureus 'Cosmic Orange' Cosmos sulphureus 'Diablo' Cosmos sulphureus 'Ladybird Mix' Cosmos sulphureus 'Ladybird Yellow'
Cosmos sulphureus 'Ladybird' Cosmos sulphureus 'Lemon Twist' Cosmos sulphureus 'Sunny Gold' Cosmos sulphureus 'Sunny Red'
Costus barbatus Costus curvibracteatus Costus longibracteolatus Costus malortieanus
Costus pulverulentus Cotinus 'Flame' Cotinus coggygria Cotinus coggygria 'Black Velvet'
Cotinus coggygria 'Cooke's Purple' Cotinus coggygria 'Daydream' Cotinus coggygria 'Foliis Purpureis' Cotinus coggygria 'Nordine'
Cotinus coggygria 'Notcutt's Variety' Cotinus coggygria 'Pendulus' Cotinus coggygria 'Pink Champagne' Cotinus coggygria 'Purple Supreme'
Cotinus coggygria 'Purpureus' Cotinus coggygria 'Red Beauty' Cotinus coggygria 'Royal Purple' Cotinus coggygria 'Velvet Cloak'
Cotinus coggygria 'Young Lady' Cotinus obovatus Cotinus obovatus 'Red Leaf' Cotinus x dummeri 'Grace'
Cotoneaster acutifolius Cotoneaster adpressus Cotoneaster adpressus 'Boer' Cotoneaster adpressus 'Little Gem'
Cotoneaster adpressus var. praecox Cotoneaster apiculatus Cotoneaster apiculatus 'Blackburn' Cotoneaster atropurpureus 'Variegatus'
Cotoneaster congestus Cotoneaster congestus 'Likiang' Cotoneaster conspicuus Cotoneaster conspicuus var. decorus
Cotoneaster dammeri Cotoneaster dammeri 'Canadian Creeper™' Cotoneaster dammeri 'Eichholz' Cotoneaster dammeri 'Lowfast'
Cotoneaster dammeri 'Major' Cotoneaster dammeri 'Mooncreeper' Cotoneaster dammeri 'Royal Beauty' Cotoneaster dammeri 'Streib's Findling'
Cotoneaster dammeri var. radicans Cotoneaster divaricatus Cotoneaster horizontalis Cotoneaster horizontalis 'Ascendens'
Cotoneaster horizontalis 'Dart's Deputation' Cotoneaster horizontalis 'Dart's Splendid' Cotoneaster horizontalis 'Gracia' Cotoneaster horizontalis 'Hessei'
Cotoneaster horizontalis 'Perpusillus' Cotoneaster horizontalis 'Robustus' Cotoneaster horizontalis 'Saxatilis' Cotoneaster horizontalis 'Valkenburg'
Cotoneaster horizontalis 'Variegatus' Cotoneaster horizontalis 'Wilsonii' Cotoneaster lacteus (parneyi) Cotoneaster lucidus
Cotoneaster microphyllus Cotoneaster microphyllus 'Cooperi' Cotoneaster microphyllus 'Emerald Spray' Cotoneaster microphyllus 'Teulon Porter'
Cotoneaster microphyllus var. colcheatus Cotoneaster microphyllus var. thymifolius (linearifolius) Cotoneaster multiflorus Cotoneaster multiflorus var. calocarpus
Cotoneaster racemiflorus var. soongoricus Cotoneaster salicifolius Cotoneaster salicifolius 'Autumn Fire' Cotoneaster salicifolius 'Emerald Carpet'
Cotoneaster salicifolius 'Gnom' Cotoneaster salicifolius 'Green Carpet' (Parkteppich)' Cotoneaster salicifolius 'Repens' (Repandens)' Cotoneaster salicifolius 'Saldam'
Cotoneaster salicifolius 'Scarlet Leader' (Herbstfeuer)' Cotoneaster salicifolius var. floccosus Cotoneaster x suecicus 'Coral Beauty' Cotoneaster x suecicus 'Pink Beauty'
Cotoneaster x suecicus 'Skogholm' Cotula coronopifolia Couroupita guianensis Crambe cordifolia
Crambe maritima Craspedia glauca Craspedia globosa Crassula arborescens
Crassula ovata Crassula perfoliata 'falcata' Crataegus aestivalis Crataegus crusgalli
Crataegus crusgalli 'Hooks' Crataegus crusgalli 'Splendens' Crataegus crusgalli var. inermis Crataegus crusgalli var. inermis 'Crusader®' (Cruzam)'
Crataegus flabellata Crataegus flava Crataegus laevigata Crataegus laevigata 'Aurea'
Crataegus laevigata 'Autumn Glory' Crataegus laevigata 'Crimson Cloud' (Superba)' Crataegus laevigata 'Paul's Scarlet' Crataegus laevigata 'Paulii'
Crataegus laevigata 'Plena' Crataegus laevigata 'Rosea Flore Plena' Crataegus laevigata 'Rosea' Crataegus laevigata 'Rubra'
Crataegus marshallii Crataegus mollis Crataegus monogyna Crataegus monogyna 'Biflora'
Crataegus monogyna 'Flexuosa' Crataegus monogyna 'Inermis Compacta' Crataegus monogyna 'Laciniata' Crataegus monogyna 'Pendula'
Crataegus monogyna 'Semperflorens' Crataegus monogyna 'Stricta' Crataegus nitida Crataegus opaca
Crataegus phaenopyrum Crataegus phaenopyrum 'Clark' Crataegus phaenopyrum 'Fastigiata' Crataegus phaenopyrum 'Manbeck Select'
Crataegus phaenopyrum 'Princeton Sentry' Crataegus phaenopyrum 'Vaughn' Crataegus punctata Crataegus punctata 'Aurea'
Crataegus punctata var. inermis Crataegus punctata var. inermis 'Ohio Pioneer' Crataegus rufula Crataegus spathulata
Crataegus succulenta Crataegus succulenta var. macracantha Crataegus uniflora Crataegus viridis
Crataegus viridis 'Winter King' Crataegus x carrierei Crataegus x lavallei Crataegus x mordenensis 'Snowbird'
Crataegus x mordenensis 'Toba' Crateva religiosa Crateva tapia Crepis biennis
Crepis incana Crescentia cujete Crinum americanum Crinum asiaticum (procerum)
Crinum erubescens 'West Indies' Crinum jagus (giganteum) Crinum x powellii Crinum x powellii 'Roseum'
Crinum x powellii 'Summer Nocturne' Crocosmia 'Citronella' Crocosmia 'Emberglow' Crocosmia 'Lucifer'
Crocosmia x crocosmiiflora Crocosmia x crocosmiiflora Crocosmia x crocosmiiflora 'Bressingham Beacon' Crocosmia x crocosmiiflora 'Bressingham Blaze'
Crocosmia x crocosmiiflora 'Emily Mckenzie' Crocosmia x crocosmiiflora 'Firebird' Crocosmia x crocosmiiflora 'George Davidson' Crocosmia x crocosmiiflora 'James Coey'
Crocosmia x crocosmiiflora 'Jenny Bloom' Crocosmia x crocosmiiflora 'Meteore' Crocosmia x crocosmiiflora 'Norwich Canary' Crocosmia x crocosmiiflora 'Rowallane Yellow'
Crocosmia x crocosmiiflora 'Solfatare' Crocosmia x crocosmiiflora 'Spitfire' Crocosmia x crocosmiiflora 'Venus' Crocus ancyrensis
Crocus ancyrensis 'Golden Bunch' Crocus angustifolius Crocus biflorus Crocus biflorus 'Adamii'
Crocus biflorus 'Pusillus' Crocus biflorus var. alexandri Crocus biflorus var. waldenii Crocus chrysanthus
Crocus chrysanthus 'Advance' Crocus chrysanthus 'Blue Pearl' Crocus chrysanthus 'Bluebird' Crocus chrysanthus 'Cream Beauty'
Crocus chrysanthus 'E.P. Bowles' Crocus chrysanthus 'Elegance' Crocus chrysanthus 'Gypsy Girl' Crocus chrysanthus 'Lady Killer'
Crocus chrysanthus 'Moonlight' Crocus chrysanthus 'Snow White' Crocus chrysanthus 'Zwanenberg Bronze' Crocus gargaricus
Crocus kotschyanus (zonatus) Crocus kotschyanus (zonatus) 'Albus' Crocus sativus Crocus sieberi 'Hurbert Edelsten'
Crocus sieberi 'Violet Queen' Crocus speciosus Crocus speciosus 'Cassiope' Crocus speciosus 'Conqueror'
Crocus speciosus 'Oxonian' Crocus speciosus 'Pollux' Crocus speciosus var. aitchisonii Crocus speciosus var. albus
Crocus tommasinianus Crocus tommasinianus 'Albus' Crocus tommasinianus 'Barr's Purple' Crocus tommasinianus 'Ruby Giant'
Crocus tommasinianus 'Whitewell Purple' Crocus vernus Crocus vernus 'Enchantress' Crocus vernus 'Flower Record'
Crocus vernus 'Jeanne D'Arc' (Joan of Arc)' Crocus vernus 'Lord of the Blues' Crocus vernus 'Peter Pan' Crocus vernus 'Pickwick'
Crocus vernus 'Queen of the Blues' Crocus vernus 'Remembrance' Crocus vernus 'Yellow Mammoth' Crocus vernus var. albiflorus
Crocus vernus var. leucorhynchus Crocus vernus var. leucostigma Crossandra infundibuliformis (undulifolia) 'Lutea' Crossandra infundibuliformis (undulifolia) 'Mona Walhead'
Crossandra infundibuliformis (undulifolia) 'Orange Marmalade' Crossandra nilotica Crotalaria laburnifolia Croton alabamensis
Cryptomeria japonica Cryptomeria japonica 'Ben Franklin' Cryptomeria japonica 'Black Dragon' Cryptomeria japonica 'Compacta'
Cryptomeria japonica 'Elegans Aurea' Cryptomeria japonica 'Elegans Compacta' Cryptomeria japonica 'Elegans Variegata' Cryptomeria japonica 'Elegans'
Cryptomeria japonica 'Globosa Nana' Cryptomeria japonica 'Green Grizzly' Cryptomeria japonica 'Gyokuryu' Cryptomeria japonica 'Jindai'
Cryptomeria japonica 'Lobbii' Cryptomeria japonica 'lycopodioides' Cryptomeria japonica 'Radicans' Cryptomeria japonica 'Sekkan-sugi'
Cryptomeria japonica 'Taisho Tama' Cryptomeria japonica 'Vilmoriniana' Cryptomeria japonica 'Winter Mint' Cryptomeria japonica 'Yoshino'
Cryptostegia grandiflora Cudrania tricuspidata Cunninghamia lanceolata Cunninghamia lanceolata 'Chason's Gift'
Cunninghamia lanceolata 'Glauca' Cuphea cyanea Cuphea hyssopifolia Cuphea hyssopifolia
Cuphea hyssopifolia 'Alba' Cuphea hyssopifolia 'Allyson' Cuphea hyssopifolia 'Charmer Pink' Cuphea hyssopifolia 'Itsy Bitsy Lilac®' (Monshi)'
Cuphea hyssopifolia 'Itsy Bitsy Rose®' (MonTroy)' Cuphea hyssopifolia 'Itsy Bitsy White®' (Monga)' Cuphea hyssopifolia 'Lavender Lei' Cuphea hyssopifolia 'Linda Downer'
Cuphea hyssopifolia 'Palest Pinkie' Cuphea hyssopifolia 'Purple Passion' Cuphea ignea (platycentra) Cuphea ignea (platycentra)
Cuphea ignea (platycentra) 'Black Ash' Cuphea ignea (platycentra) 'Coan Flamingo' Cuphea ignea (platycentra) 'Coan White' Cuphea ignea (platycentra) 'David Verity'
Cuphea ignea (platycentra) 'Dynamite' Cuphea ignea (platycentra) 'Pink Peculiar' Cuphea ignea (platycentra) 'Variegata' Cuphea llavea
Cuphea llavea 'Georgia Scarlet' Cuphea micropetala Cuphea micropetala Cuphea pallida
Cuphea schumannii Cuphea x purpurea 'Firefly' Cupressocyparis leylandii Cupressocyparis leylandii 'Castlewellan Gold' ('Castlewellan')'
Cupressocyparis leylandii 'Contorta' Cupressocyparis leylandii 'Emerald Isle®' (Moncal)' Cupressocyparis leylandii 'Golconda' Cupressocyparis leylandii 'Gold Cup'
Cupressocyparis leylandii 'Gold Nugget' Cupressocyparis leylandii 'Gold Rider' Cupressocyparis leylandii 'Green Spire' Cupressocyparis leylandii 'Haggerston Grey'
Cupressocyparis leylandii 'Harlequin' Cupressocyparis leylandii 'Hillspire' Cupressocyparis leylandii 'Hyde Hall' Cupressocyparis leylandii 'Jubilee'
Cupressocyparis leylandii 'Leighton Green' Cupressocyparis leylandii 'Naylor's Blue' Cupressocyparis leylandii 'New Ornament' Cupressocyparis leylandii 'Robinsons Gold'
Cupressocyparis leylandii 'Rostrevor' Cupressocyparis leylandii 'Silver Dust' Cupressocyparis leylandii 'Stapehill Hybrid' Cupressocyparis notabilis
Cupressocyparis ovensii Cupressus arizonica Cupressus arizonica 'Limelight' Cupressus arizonica var. glabra
Cupressus arizonica var. glabra 'Blue Ice' Cupressus arizonica var. glabra 'Blue Pyramid' Cupressus arizonica var. glabra 'Carolina Sapphire' Cupressus arizonica var. glabra 'Glauca'
Cupressus arizonica var. glabra 'Silver Smoke' Cupressus macrocarpa Cupressus macrocarpa 'Contorta' Cupressus macrocarpa 'Donard Gold'
Cupressus macrocarpa 'Goldcrest' Cupressus macrocarpa 'Golden Cone' Cupressus sempervirens Cupressus sempervirens 'Glauca'
Cupressus sempervirens 'Roylei' Cupressus sempervirens 'Stricta' Cupressus sempervirens 'Swanes Golden' Curcuma alismatifolia
Curcuma alismatifolia Curcuma alismatifolia 'Rose' Curcuma alismatifolia 'White' Curcuma harmandii
Curcuma petiolata Curcuma rabdota Curcuma roscoeana Curcuma roscoeana
Curcuma roscoeana 'Chiang Mai Snow' Curcuma sumatrana Curcuma zedoaria Curcuma zedoaria
Cycas circinalis Cycas revoluta Cycas revoluta Cycas wadei
Cyclamen hederifolium (neapolitanum) Cyclamen hederifolium (neapolitanum) 'Album' Cyclamen persicum 'Laser Wine Flame' Cyclamen persicum 'Midori Rose'
Cyclamen persicum 'Silverado Purple' Cydonia oblonga Cydonia oblonga 'Jumbo' Cydonia oblonga 'Orange'
Cydonia oblonga 'Pineapple' Cydonia oblonga 'Smyrna' Cymbalaria muralis Cymbopogon citratus
Cymbopogon citratus Cynara cardunculus Cynoglossum nervosum Cypella aquatica
Cyperus albostriatus Cyperus alternifolius Cyperus alternifolius Cyperus alternifolius 'Denver Giant'
Cyperus alternifolius 'Gracilis' Cyperus alternifolius 'Gracilis' Cyperus alternifolius 'Nanus' Cyperus alternifolius 'Variegatus'
Cyperus distans Cyperus giganteus Cyperus isocladus Cyperus longus
Cyperus papyrus Cyperus radiatus Cypripedium acaule Cypripedium calceolus
Cyrilla arida Cyrilla parvifolia Cyrilla racemiflora Cyrtomium falcatum
Cyrtomium falcatum Cyrtomium falcatum 'Compactum' Cyrtomium falcatum 'Rochfordianum' Cystopteris fragilis
Cytisus decumbens Cytisus hirsutus Cytisus hirsutus var. hirsutissimus Cytisus multiflorus
Cytisus scoparius Cytisus scoparius 'Andreanus' Cytisus scoparius 'Burkwoodii' Cytisus scoparius 'C.E. Pearson'
Cytisus scoparius 'Carla' Cytisus scoparius 'Compact Crimson' Cytisus scoparius 'Cornish Cream' Cytisus scoparius 'Diana'
Cytisus scoparius 'Donard Gem' Cytisus scoparius 'Donard Seedling' Cytisus scoparius 'Dorothy Walpole' Cytisus scoparius 'Dragonfly'
Cytisus scoparius 'Dukaat' Cytisus scoparius 'Enchantress' Cytisus scoparius 'Firefly' Cytisus scoparius 'Golden Sunlight'
Cytisus scoparius 'Goldfinch' Cytisus scoparius 'Hookstone' Cytisus scoparius 'Johnson's Crimson' Cytisus scoparius 'Killiney Red'
Cytisus scoparius 'Knaphill Lemon' Cytisus scoparius 'Lady Moore' Cytisus scoparius 'Lena' Cytisus scoparius 'Lilac Time'
Cytisus scoparius 'Lord Lambourne' Cytisus scoparius 'Luna' Cytisus scoparius 'Minstead' Cytisus scoparius 'Moonlight'
Cytisus scoparius 'Nova Scotia' Cytisus scoparius 'Radiance' Cytisus scoparius 'Red Favorite' Cytisus scoparius 'Red Wings'
Cytisus scoparius 'Sulphureus' Cytisus scoparius 'Variegatus' Cytisus scoparius 'Windlesham Ruby' Cytisus scoparius 'Zeelandia'
Cytisus x beanii Cytisus x kewensis Cytisus x praecox Cytisus x praecox 'Albus'
Cytisus x praecox 'All Gold' Cytisus x praecox 'Canary Bird' Cytisus x praecox 'Goldspeer' Cytisus x praecox 'Hollandia'
Cytisus x praecox 'Lucky'
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