- Commelina dianthifolia
- Commelina elliptica
- Commelina erecta
- Commelina erecta angustifolia
- Commelina tuberosa
- Commelina virginica
- Commersonia fraseri
- Comptonia peregrina
- Comptonia peregrina asplenifolia
- Conandron ramondioides
- Conanthera bifolia
- Conanthera campanulata