Cicerbita
Cichorei
Cissus antarctica
Clematis
Clivia
Cocos
Coelogyne
Coix
Colchicum
Collinsia
Columnea
Coniogramme
Cordia
Cordyline
Coreopsis
Coriariaceae

Cornus
Coronilla
Correa
Costus
Cotinus
Crassula
Crocosmia
Crotalaria
Cunninghamia
Cupressus
Cyathea
Cycas
Cyclaam
Cycnoches
Cydonia
Cymbalaria

Cyphomandra
Cyrtomium
Cystopteris
Daboecia
Dacrydium
Dahlia
Davallia
Dendrobium
Dendromecon
Dennstaedtia
Desfontainiaceae
Deutzia
Dicksonia
Dieffenbachia
Dionysia
Dioon

Dioscorea
Diospyros
Diplazium
Disa
Disocactus
Dophei
Dovenetel
Dracaena
Duizendknoop
Dwergmispel
Echinacea
Echinopsis
Echium
Egelskop