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Plants
| Title | Common Name |
|---|---|
| Clematis minor | Wei Ling Hsien |
| Clerodendrum infortunatum | not available |
| Clinopodium laevigatum | not available |
| Cnestis palala | Karang-karang; Akar padang; Garing-garing; Merr.; Sembelit merah; Rumput kachat |
| Cocculus leaeba | Vehri; Parvati; Cocculus |
| Cocculus pendulus | not available |
| Coffea arabica | Cafeier; Cafeto; Cafe De Moka; Kia Fey; Cafe D'Haiti; Kahve; Cafe; Coffee |
| Cola nitida | Kola |
| Colubrina guatemalensis | not available |
| Combretum decandrum | not available |
| Commelina communis | not available |
| Conyza lyrata | not available |
| Coptis teeta | Altin Ipligi; Huang Lien; Chih Lien; Wang Lien |
| Cordia curassavica | not available |
| Cornus florida | Dogwood; America-Yama-Bosi |
| Cornus officinalis | Jou Tsao; Sanshu; Shan Chu Yu; Shu Suan Tsao |
| Coronopus didymus | Quimpe; Mastuerzo De Indias; Bucks Horn |
| Corydalis govaniana | not available |
| Coutarea hexandra | not available |
| Coutarea latiflora | not available |