Semantic search
- Clethra alnifolia
- Clusia
- Cochlearia
- Cochlearia groenlandica
- Cocos
- Cocos nucifera
- Comarum
- Comarum palustre
- Commelina benghalensis
- Commelina communis
- Commelina erecta
- Commelina virginica
- Conocarpus
- Conocarpus erectus
- Convallaria
- Convallaria majalis
- Convallaria majalis var. majalis
- Corchorus
- Corchorus aestuans
- Corchorus hirsutus
- Corchorus hirtus
- Corchorus siliquosus
- Corchorus tridens
- Coreopsis
- Coreopsis auriculata
- Coreopsis lanceolata
- Coreopsis sect. Coreopsis
- Coreopsis tripteris
- Coreopsis verticillata
- Corispermum
- Corispermum hyssopifolium
- Cornus
- Cornus canadensis
- Cornus florida
- Cornus mas
- Cornus sanguinea
- Cornus sericea
- Cornus subg. Cornus
- Cornus suecica
- Corrigiola
- Corrigiola litoralis
- Corrigiola litoralis subsp. litoralis
- Corylus
- Corylus avellana
- Cotula
- Cotula coronopifolia
- Cotyledon
- Cotyledon orbiculata
- Crambe
- Crambe maritima