| Clitoria ternatea L., 1753 |
| Clitoria triflora S. Watson, 1887 |
| Clitoria virginiana L., 1753 |
| Cochliasanthus Trew, 1764 |
| Cochliasanthus caracalla (L.) Trew, 1764 |
| Cojoba Britton & Rose, 1928 |
| Cojoba arborea (L.) Britton & Rose, 1928 |
| Cojoba arborea var. arborea (L.) Britton & Rose, 1928 |
| Cojoba donnell-smithii Britton & Rose, 1928 |
| Cojoba escuintlensis (Lundell) L. Rico, 1991 |
| Cojoba graciliflora (S.F. Blake) Britton & Rose, 1928 |
| Cojoba haematoloba L. Rico, 1991 |
| Cojoba mariaelenae L. Rico, 1991 |
| Cojoba matudae (Lundell) L. Rico, 1991 |
| Cojoba recordii Britton & Rose, 1928 |
| Cojoba sophorocarpa (Benth.) Britton & Rose, 1928 |
| Cojoba tenella Britton & Rose, 1928 |
| Cojoba tuerckheimii Britton & Rose, 1928 |
| Cojoba undulatomarginata L. Rico, 1991 |
| Colinil Adans., 1763 |