Chamelaucium floriferum Chamelaucium uncinatum
Chilopsis linearis Chilopsis linearis 'Burgundy'
Chimonanthus praecox Chiococca alba
Chionanthus retusus Chionanthus virginicus
Chionanthus virginicus var. maritimus X Chiranthofremontia lenzii
X Chitalpa tashkentensis X Chitalpa tashkentensis 'Morning Cloud'
X Chitalpa tashkentensis 'White Morning Cloud' Chlorophora tinctoria
Choisya ternata Choisya ternata 'Sundance'
Choricarpia leptopetala Chorisia insignis
Chorisia speciosa Chorizema x 'Bush Flame'
Chorizema cordata Chorizema cordata x illicifolia
Chorizema ilicifolia Chrysalidocarpus cabadae
Chrysalidocarpus lutescens Chrysobalanus icaco
Chrysophyllum cainito Chrysophyllum oliviforme
Chrysothamnus paniculatus Cinnamomum aromaticum
Cinnamomum brevifolium Cinnamomum camphora
Cinnamomum glanduliferum Cinnamomum verum
Cissus spp. Cistus x
Cistus x 'Grayswood Pink' Cistus 'Santa Cruz'
Cistus 'Snow Fire' Cistus 'Victor Reiter'
Cistus x argenteus 'Blushing Peggy Sammons' Cistus x corbariensis
Cistus crispus Cistus ladanifer
Cistus psilosepalus Cistus x pulverulentus 'Sunset'
Cistus x purpureus Cistus salviifolius
Cistus salviifolius 'Prostratus' Cistus x skanbergii
Citharexylum fruticosum Citriobatus pauciflorus
Citriobatus spinescens X Citrofortunella microcarpa 'Tiger'
Citrus aurantium 'Chinotto' Citrus limon
Citrus limon 'Eureka' Citrus limon 'Meyer'
Citrus x paradisi Citrus x paradisi 'Red Marsh'
Citrus reticulata Citrus sinensis
Citrus sinensis 'Dwarf Valencia' Citrus spp.
Cladrastis lutea Cladrastis lutea 'Rosea'
Cladrastis sinensis Clerodendrum bungei
Clerodendrum paniculatum 'Borneo Sunset' Clerodendrum philippinum
Clerodendrum quadriloculare Clerodendrum speciosissimum
Clerodendrum trichotomum Clerodendrum trichotomum var. fargesii 'Carnival'
Clerodendrum ugandense Clerodendrum wallichii
Clethra acuminata Clethra alnifolia
Clethra alnifolia 'Ann Bidwell' Clethra alnifolia 'Caleb (Vanilla SpiceŽ)'
Clethra alnifolia 'Compacta' Clethra alnifolia 'Crystalina (SugartinaŽ Crystalina)'
Clethra alnifolia 'Fern Valley Pink' Clethra alnifolia 'Hummingbird'
Clethra alnifolia 'Rosea' Clethra alnifolia 'Ruby Spice'
Clethra alnifolia 'September Beauty' Clethra barbinervis
Clianthus puniceus Cliftonia monophylla
Clusia major Coccoloba diversifolia
Coccoloba microstachya Coccoloba pubescens
Coccoloba rugosa Coccoloba uvifera