| Genus | # of species |
|---|---|
| Carissa | 1 |
| Carpoxylon | 1 |
| Caryota | 6 |
| Cattleya | 2 |
| Ceiba | 2 |
| Ceodes | 1 |
| Cereus | 1 |
| Ceroxylon | 1 |
| Chamaedorea | 10 |
| Chambeyronia | 3 |
| Chlorophytum | 2 |
| Chrysodracon | 2 |
| Chrysophyllum | 1 |
| Chuniophoenix | 2 |
| Cinnamomum | 1 |
| Citrus | 5 |
| Citrus × paradisi | 1 |
| Clausena | 1 |
| Clinostigma | 5 |
| Cocos | 3 |