C

Genus/species/cultivar
Callicarpa bodinieri var. giraldii
Callicarpa dichotoma
Callicarpa Japonica var. luxurians
Calocedrus decurrens
Calocedrus formosana
Calycanthus occidentalis
Calycanthus x raulstonii ‘Hartlage Wine’
Camellia ‘Cornish Snow’
Camellia ‘Inspiration’
Camellia ‘Leonard Messel’
Camellia japonica ‘Adolphe Audusson’
Camellia japonica ‘Alba Plena’
Camellia japonica ‘Drama Girl’
Camellia japonica ‘Elegans’
Camellia japonica ‘Lily Pons’
Camellia japonica ‘Ruddigore’
Camellia x williamsii ‘Donation’
Camellia x williamsii ‘Grand Jury’
Camellia x williamsii ‘J.c. Williams’
Caragana arborescens ‘Eastleigh Erect’
Carpenteria californica
Carpinus betulus
Carpinus betulus ‘Columnaris’
Carpinus betulus ‘Fastigiata’
Carpinus betulus ‘Purpurea’
Carpinus betulus ‘Quercifolia’
Carpinus caroliniana
Carpinus cordata
Carpinus fargesiana
Carpinus henryana
Carpinus henryana var. simplicidentata
Carpinus japonica
Carpinus laxiflora
Carpinus omeiensis
Carpinus orientalis
Carpinus polyneura
Carpinus shensiensis
Carpinus tschonoskii
Carpinus x schuschaensis
Carya glabra var. megacarpa
Carya illinoinensis
Carya laciniosa
Carya ovata
Carya ovata var. australis
Cassinia fulvida
Castanea crenata
Castanea mollissima
Castanea sativa
Castanea sativa ‘Anny’s Summer Red’
Castanea sativa ‘Variegata’
Castanea seguinii
Catalpa bignonioides
Catalpa bignonioides ‘Aurea’
Catalpa bungei
Catalpa fargesii f. duclouxii
Catalpa sp.
Catalpa speciosa
Catalpa speciosa ‘Pulverulenta’
Catalpa x erubescens ‘Purpurea’
Ceanothus ‘Southmead’
Cedrus atlantica ‘Aurea’
Cedrus atlantica Glauca Group ‘Glauca’
Cedrus deodara
Cedrus deodara ‘Golden Horizon’
Cedrus deodara ‘Pendula’
Cedrus libani
Celtis australis
Celtis biondii
Celtis caucasica
Celtis tournefortii
Centaurea ‘Jordy’
Cephalanthus occidentalis
Cephalotaxus fortunei
Cephalotaxus harringtonia
Cephalotaxus harringtonia var. drupacea
Cercidiphyllum japonicum
Cercidiphyllum japonicum f. miquelianum
Cercidiphyllum magnificum
Cercis canadensis
Cercis canadensis ‘Flame’
Cercis canadensis ‘Forest Pansy’
Cercis canadensis f. alba ‘Royal White’
Cercis canadensis var. texensis ‘Oklahoma’
Cercis gigantea
Cercis griffithii
Chaenomeles cathayensis
Chaenomeles speciosa
Chaenomeles speciosa ‘Moerloosei’
Chaenomeles speciosa ‘Rubra Grandiflora’
Chamaecyparis lawsoniana ‘Albospica’
Chamaecyparis lawsoniana ‘Blue Gown’
Chamaecyparis lawsoniana ‘Elegantissima’
Chamaecyparis lawsoniana ‘Fraseri’
Chamaecyparis lawsoniana ‘Gnome’
Chamaecyparis lawsoniana ‘Grayswood Pillar’
Chamaecyparis lawsoniana ‘Kilmacurragh’
Chamaecyparis lawsoniana ‘Lutea Smithii’
Chamaecyparis lawsoniana ‘Lutea’
Chamaecyparis lawsoniana ‘New Silver’
Chamaecyparis lawsoniana ‘Pembury Blue’
Chamaecyparis lawsoniana ‘Pendula’
Chamaecyparis lawsoniana ‘Pottenii’
Chamaecyparis lawsoniana ‘Silver Queen’
Chamaecyparis lawsoniana ‘Spek’
Chamaecyparis lawsoniana ‘Stardust’
Chamaecyparis lawsoniana ‘Stewartii’
Chamaecyparis lawsoniana ‘Triomf van Boskoop’
Chamaecyparis lawsoniana ‘Westermannii’
Chamaecyparis lawsoniana ‘Winston Churchill’
Chamaecyparis lawsoniana ‘Wisselii’
Chamaecyparis obtusa ‘Aurora’
Chamaecyparis obtusa ‘Coralliformis’
Chamaecyparis obtusa ‘Lycopodioides’
Chamaecyparis obtusa ‘Nana Lutea’
Chamaecyparis obtusa ‘Nana’
Chamaecyparis obtusa ‘Tetragona Aurea’
Chamaecyparis pisifera ‘Filifera’
Chamaecyparis pisifera ‘Nana’
Chamaecyparis pisifera ‘Snow’
Chiliotrichum diffusum
Chimonanthus nitens
Chimonanthus praecox
Chimonanthus praecox ‘Grandiflorus’
Chimonobambusa  tumidissinoda
Chionanthus retusus
Chionanthus virginicus
Chionodoxa luciliae ‘Alba’
Choisya ternata
Choisya x dewitteana Goldfingers
Choisyia ternata
Cistus laurifolius
Citrus trifoliata
Clematis ‘Albiflora’
Clematis ‘Alionushka’
Clematis ‘Apple Blossom’
Clematis ‘Arabella’
Clematis ‘Ascotiensis’
Clematis ‘Beauty of Worcester’
Clematis ‘Betty Corning’
Clematis ‘Bill MacKenzie’
Clematis ‘Blekitny Aniol’
Clematis ‘Constance’
Clematis ‘Daniel Deronda’
Clematis ‘Diamond Anniversary’
Clematis ‘Doctor Ruppel’
Clematis ‘Duchess of Albany’
Clematis ‘Elsa Späth’
Clematis ‘Étoile Rose’
Clematis ‘Francis Rivis’
Clematis ‘General Sikorski’
Clematis ‘H. F. Young’
Clematis ‘Helsingborg’
Clematis ‘Innocent Blush’
Clematis ‘Jackmanii Alba’
Clematis ‘Jacqueline du Pré’
Clematis ‘John Huxtable’
Clematis ‘Kasmu’
Clematis ‘Kermesina’
Clematis ‘Korean Beauty’
Clematis ‘Lady Betty Balfour’
Clematis ‘Lady Northcliffe’
Clematis ‘Lasurstern’
Clematis ‘lawsoniana’
Clematis ‘Lemon Dream’
Clematis ‘Louise Rowe’
Clematis ‘Marie Boisselot’
Clematis ‘Nelly Moser’
Clematis ‘Niobe’
Clematis ‘Palette’
Clematis ‘Perle d’Azur’
Clematis ‘Pink Flamingo’
Clematis ‘Polish Spirit’
Clematis ‘Princess Diana’
Clematis ‘Purple Spider’
Clematis ‘Rhapsody’
Clematis ‘Romantika’
Clematis ‘Rosy Pagoda’
Clematis ‘Rouge Cardinal’
Clematis ‘Royal Velours’
Clematis ‘Ruby’
Clematis ‘Scartho Gem’
Clematis ‘The President’
Clematis ‘Toltae’
Clematis ‘Venosa Violacea’
Clematis ‘Voluceau’
Clematis ‘Vyvyan Pennell’
Clematis ‘W. E. Gladstone’
Clematis ‘William Kennett’
Clematis ‘Willy’
Clematis Avant-garde
Clematis chiisanensis
Clematis Confetti
Clematis connata
Clematis Crystal Fountain
Clematis koreana Amber = ‘Wit141205’
Clematis koreana var. carunculosa
Clematis ladakhiana
Clematis macropetala
Clematis macropetala ‘Maidwell Hall’
Clematis Princess Kate
Clematis serratifolia
Clematis sp.
Clematis Vesuvius
Clematis vitalba
Clematis Wisley
Clethra barbinervis
Clethra tomentosa
Colletia hystrix ‘Rosea’
Cornus ‘Ormonde’
Cornus ‘Porlock’
Cornus alba ‘Aurea’
Cornus alba ‘Aurora’
Cornus alba ‘Ivory Halo’
Cornus alba ‘Kesselringii’
Cornus alba ‘Sibirica’
Cornus alba ‘Spaethii’
Cornus alternifolia
Cornus amomum
Cornus amomum ‘Blue Cloud’
Cornus amomum subsp. obliqua
Cornus asperifolia var. drummondii
Cornus capitata subsp. emeiensis
Cornus controversa
Cornus controversa ‘Pagoda’
Cornus controversa ‘Variegata’
Cornus florida ‘Cherokee Chief’
Cornus florida ‘First Lady’
Cornus glabrata
Cornus hongkongensis
Cornus kousa
Cornus kousa ‘Beni-fuji’
Cornus kousa ‘Bonfire’
Cornus kousa ‘Cappuccino’
Cornus kousa ‘Laura’
Cornus kousa ‘Marwood Dawn’
Cornus kousa ‘Miss Satomi’
Cornus kousa ‘Rosea’
Cornus kousa var. chinensis
Cornus kousa var. chinensis ‘China Girl’
Cornus kousa var. chinensis ‘White Fountain’
Cornus kousa var. chinensis ‘Wisley Queen’
Cornus mas
Cornus mas ‘Aurea’
Cornus mas ‘Aureoelegantissima’
Cornus mas ‘Nana’
Cornus mas ‘Variegata’
Cornus nuttallii
Cornus nuttallii ‘Colrigo Giant’
Cornus nuttallii ‘North Star’
Cornus officinalis
Cornus sanguinea ‘Anny’s Winter Orange’
Cornus sanguinea ‘Magic Flame’
Cornus sanguinea ‘Midwinter Fire’
Cornus schindleri
Cornus sericea ‘White Gold’
Cornus walteri
Cornus x elwinortonii ‘Venus’
Cornus x rutgersensis ‘Aurora’
Corydalis ‘Craigton Blue’
Corylopsis glabrescens var. gotoana ‘Chollipo’
Corylopsis multiflora
Corylopsis pauciflora
Corylopsis sinensis
Corylopsis sinensis var. calvescens
Corylopsis sinensis var. calvescens veitchiana
Corylopsis sinensis var. sinensis
Corylopsis spicata
Corylus ‘Te Terra Red’
Corylus avellana ‘Anny’s Compact Red’
Corylus avellana ‘Aurea’
Corylus avellana ‘Contorta’
Corylus avellana ‘Cosford’
Corylus avellana ‘Fuscorubra’
Corylus avellana ‘Pendula’
Corylus avellana ‘Webb’s Prize Cob’
Corylus chinensis
Corylus colurna
Corylus ferox
Corylus heterophylla
Corylus maxima
Corylus maxima ‘Halle’sche Riesennuss’
Corylus maxima ‘Purpurea’
Corylus maxima ‘Red Filbert’
Corylus sieboldiana
Cotinus ‘Flame’
Cotinus ‘Grace’
Cotinus coggygria ‘Royal Purple’
Cotinus coggygria Golden Spirit = ‘Ancot’
Cotinus obovatus
Cotoneaster ‘Cornubia’
Cotoneaster ‘Gracia’
Cotoneaster ‘Hybridus Pendulus’
Cotoneaster acuminatus
Cotoneaster acutifolius
Cotoneaster adpressus
Cotoneaster aff. ambiguus
Cotoneaster affinis
Cotoneaster alatavicus
Cotoneaster alaunicus
Cotoneaster albokermesinus
Cotoneaster altaicus
Cotoneaster ambiguus aff.
Cotoneaster amoenus
Cotoneaster antoninae
Cotoneaster apiculatus
Cotoneaster armenus
Cotoneaster ascendens
Cotoneaster assamensis
Cotoneaster atrovirens
Cotoneaster beimashanensis
Cotoneaster bis-ramianus
Cotoneaster bitahaiensis
Cotoneaster bradyi
Cotoneaster brandisii
Cotoneaster bullatus
Cotoneaster calocarpus
Cotoneaster cambricus
Cotoneaster canescens
Cotoneaster cf. franchetii
Cotoneaster cf. simonsii
Cotoneaster chailaricus
Cotoneaster chengkangensis
Cotoneaster chuanus
Cotoneaster chungtiensis
Cotoneaster cinerascens
Cotoneaster cochleatus
Cotoneaster commixtus
Cotoneaster congestus
Cotoneaster congestus ‘Nanus’
Cotoneaster conspicuus
Cotoneaster cooperi
Cotoneaster cordifolius Cf.
Cotoneaster coriaceus aff.
Cotoneaster cornifolius
Cotoneaster creticus
Cotoneaster crispii
Cotoneaster cuspidatus
Cotoneaster daliensis
Cotoneaster declinatus
Cotoneaster dielsianus
Cotoneaster difficilis
Cotoneaster discolor
Cotoneaster divaricatus
Cotoneaster elegans
Cotoneaster ellipticus
Cotoneaster floridus
Cotoneaster forrestii
Cotoneaster franchetii
Cotoneaster frigidus
Cotoneaster froebelii
Cotoneaster fulvidus
Cotoneaster gamblei
Cotoneaster glabratus
Cotoneaster glacialis
Cotoneaster glaucophyllus
Cotoneaster gracilis
Cotoneaster harrovianus
Cotoneaster henryanus
Cotoneaster hissaricus
Cotoneaster hjelmqvistii
Cotoneaster hsingshangensis
Cotoneaster hualiensis
Cotoneaster hupehensis
Cotoneaster hurusawaianus
Cotoneaster hylanderi
Cotoneaster hypocarpus
Cotoneaster ignavus
Cotoneaster ignescens
Cotoneaster ignotus
Cotoneaster induratus
Cotoneaster insculptus
Cotoneaster insculptus aff.
Cotoneaster insignis
Cotoneaster insolitus
Cotoneaster integrifolius
Cotoneaster intermedius
Cotoneaster karatavicus
Cotoneaster kingdonii
Cotoneaster kitaibelii
Cotoneaster klotzii
Cotoneaster kongboensis
Cotoneaster lacrimiformis
Cotoneaster lacteus
Cotoneaster lamprofolius
Cotoneaster lancasteri
Cotoneaster leveillei
Cotoneaster lidjiangensis
Cotoneaster lomahunensis
Cotoneaster lucidus
Cotoneaster ludlowii
Cotoneaster macrocarpus cf.
Cotoneaster mairei
Cotoneaster marginatus
Cotoneaster marginatus ‘Brno’
Cotoneaster marquandii
Cotoneaster meiophyllus
Cotoneaster melanocarpus
Cotoneaster meuselii
Cotoneaster miniatus
Cotoneaster minimus
Cotoneaster mirabilis
Cotoneaster mongolicus
Cotoneaster monopyrenus
Cotoneaster morulus
Cotoneaster moupinensis
Cotoneaster mucronatus
Cotoneaster muliensis
Cotoneaster naninitens
Cotoneaster naoujanensis
Cotoneaster narynensis
Cotoneaster natmataungensis
Cotoneaster nepalensis
Cotoneaster newryensis
Cotoneaster niger
Cotoneaster nitens
Cotoneaster nohelii
Cotoneaster obscurus
Cotoneaster obtusus
Cotoneaster ogisui
Cotoneaster omissus
Cotoneaster osmastonii
Cotoneaster ottoschwarzii
Cotoneaster pannosus
Cotoneaster paradoxus
Cotoneaster parkeri
Cotoneaster parnassicus
Cotoneaster pekinensis
Cotoneaster perpusillus
Cotoneaster polyanthrmus
Cotoneaster procumbens ‘Queen of Carpets’
Cotoneaster prostratus
Cotoneaster przewalskii
Cotoneaster pseudo-obscurus
Cotoneaster pseudoambiguus
Cotoneaster qungbixiensis
Cotoneaster rehderi
Cotoneaster rhytidophyllus
Cotoneaster roborowskii
Cotoneaster rokujodaisanensis
Cotoneaster roseus
Cotoneaster rotundifolius
Cotoneaster rubens
Cotoneaster rugosus
Cotoneaster salicifolius
Cotoneaster salicifolius ‘Herbstfeuer’
Cotoneaster salicifolius var. floccosus
Cotoneaster salwinensis
Cotoneaster sandakphuensis
Cotoneaster schlechtendalii
Cotoneaster schubertii
Cotoneaster sengorensis
Cotoneaster sherriffii
Cotoneaster sichuanensis
Cotoneaster sikangensis
Cotoneaster sp.
Cotoneaster splendens
Cotoneaster sternianus
Cotoneaster suavis
Cotoneaster subacutus
Cotoneaster submultiflorus
Cotoneaster taylorii
Cotoneaster teijiashanensis
Cotoneaster tengyuehensis
Cotoneaster tenuipes
Cotoneaster thimphuensis
Cotoneaster tibeticus cf.
Cotoneaster tjuliniae
Cotoneaster transcaucasicus
Cotoneaster transens
Cotoneaster tumeticus
Cotoneaster turcomanicus
Cotoneaster tytthocarpus
Cotoneaster uva-ursi
Cotoneaster vandelaarii
Cotoneaster vernae
Cotoneaster vestitus
Cotoneaster villosulus
Cotoneaster vilmorinianus
Cotoneaster wanbooyensis
Cotoneaster wardii
Cotoneaster washanensis
Cotoneaster wattii
Cotoneaster wilsonii
Cotoneaster x suecicus ‘Ifor’
Cotoneaster x suecicus ‘Ursinov’
Cotoneaster x suecicus cf.
Cotoneaster x watereri
Cotoneaster xerampelinus
Cotoneaster yalungensis
Cotoneaster yinchangensis
Cotoneaster yui
Cotoneaster yulingkongensis cf.
Cotoneaster zabelii
Cotoneaster zabelii ‘Magyar’
Cotoneaster zeravschanicus
Crataegus aemula
Crataegus aestivalis
Crataegus agrestina
Crataegus alabamensis
Crataegus altaica
Crataegus ambigua
Crataegus aprica
Crataegus arnoldiana
Crataegus atrosanguinea
Crataegus berberifolia
Crataegus brachyacantha
Crataegus calpodendron
Crataegus castlegarensis
Crataegus coccinea
Crataegus coccinioides
Crataegus columbiana
Crataegus crus-galli
Crataegus crus-galli var. oblongata
Crataegus dahurica
Crataegus ellwangeriana
Crataegus erythropoda
Crataegus flabellata
Crataegus harbisonii
Crataegus jackii
Crataegus jonesiae
Crataegus laevigata ‘Gireoudii’
Crataegus laevigata ‘Paul’s Scarlet’
Crataegus laevigata ‘Punicea’
Crataegus laevigata ‘Rosea Flore Pleno’
Crataegus macracantha
Crataegus marshallii
Crataegus maximowiczii
Crataegus mendosa
Crataegus mexicana
Crataegus mollis
Crataegus monogyna
Crataegus nigra
Crataegus nitida
Crataegus orientalis
Crataegus persimilis ‘Prunifolia’
Crataegus phippsii
Crataegus pinnatifida var. major
Crataegus pseudoheterophylla
Crataegus pubescens f. stipulacea
Crataegus punctata
Crataegus rhipidophylla
Crataegus saligna
Crataegus sanguinea
Crataegus schraderiana
Crataegus songarica
Crataegus sororia
Crataegus submollis
Crataegus suksdorfii
Crataegus tanacetifolia
Crataegus tracyi
Crataegus triflora
Crataegus viburnifolia
Crataegus viridis
Crataegus wattiana
Crataegus x durobrivensis
Crataegus x grignonensis
Crataegus x kyrtostyla
Crataegus x lavalleei ‘Carrierei’
Crocus speciosus ‘Albus’
Cryptomeria japonica
Cryptomeria japonica ‘Globosa Nana’
Cryptomeria japonica ‘Sekkan-sugi’
Cryptomeria japonica ‘Viminalis’
Cryptomeria japonica Elegans Group ‘Elegans’
Cunninghamia lanceolata
Cupressus arizonica ‘Pyramidalis’
Cupressus cashmeriana
Cupressus chengiana
Cupressus gigantea
Cupressus goveniana var. abramsiana
Cupressus sempervirens
Cupressus sp.
Cupressus torulosa
Cyclamen cilicium
Cyclamen hederifolium var. hederifolium f. albiflorum
Cyclamen hederifolium var. hederifolium f. albiflorum
Cydonia oblonga
Cymbalaria muralis ‘Globosa Alba’
Cynara cardunculus (Scolymus Group)
Cypripedium kentuckiense