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Plants
| Title | Common Name |
|---|---|
| Cornutia grandifolia | not available |
| Corydalis ambigua | Ezo-Engosaku; Yen Hu So; Hsuan Hu So |
| Corydalis cava | Helmbloem; Violeta Bulbosa; Hohlwurzel; Coridale; Mallum Terre; Corydalle Bulbeuse; Fumitory,Hollow; Round Birthwort |
| Corydalis lineariloba | Yama-Engosaku |
| Corydalis nakai | not available |
| Costus cylindricus | not available |
| Costus speciosus | Galoba oetan; Tawar; Tabar-tabar; Tawar-tawar; Costus; Setengteng; Setawar; Teng |
| Craniolaria annua | not available |
| Crataegus oxyacantha | Alic; Seiyo-Sanzasi |
| Crescentia cujete | Calebassier; Callebasse Marronne; Calebasse; Tabu kayu; Berenuk; Petite Calabasse Des Bois; Camasa; Guiro; Higuero Galion; Higuera; Calabash Tree; Calebasse Marron; Jiguero; Higuero |
| Crescentia linearifolia | Higuerito; Calebasse Marron; Petite Calebasse Des Bois |
| Crithmum maritimum | Meerfenchel; Fenouil Marin; Finochio Marino; Sea Fennel; Zeevenkel; Sanpetra; Fennel,Sea; Hinojo Marino |
| Crotalaria juncea | Qinnab Al Krotalarya |
| Cuphea glutinosa | not available |
| Curatella americana | not available |
| Curcuma domestica | Yu Chin; Turmeric; Olena; Kurkuma Uzum; Safran Des Indes; Safran Du Pays; Safran De St Domingue; Safron Du Pays; Ukon; Haridra |
| Curcuma longa | Ukon; Kondin; Kunir; Temu kunyit; Goeratji; Kakoenji; Rame; Temu kuning; Oendre; Renet; Kunir bentis; Koenjet; Kunyit; Tius |
| Cuscuta europaea | Cinsaci |
| Cuscuta reflexa | not available |
| Cymbopogon citratus | Limonotu; Sere; Eri makoe; Sereh makan (Edible sereh); Sere mangat bi; Limoncillo; Citronela; Citronelle; Laoe wasiro; Hoe moeke; Serai; Tapisa-pisa; Salimbata |