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Plants
| Title | Common Name |
|---|---|
| Cedrela toona | Cedro; Kuberaka; Indian Mahogany; Sisiet om; Tuna |
| Celastrus scandens | Waxwork; American Bittersweet; Falsa Dulcamara; Douce Amer De L'Amerique; Amerikaanse Bitterzoet; Bittersweet; Amerikanische Bittersuss |
| Centaurea calcitrapa | Cardo Estrelado; Stern Flodkenblume; Kalketrip; Abrojo; Ippofesto; Calcatreppolo; Common Star Thistle; Abre Puno; Calcitrapa; Chausse Trape; Chardon Etoile |
| Centaurea cyanus | Peygamber Cicegi; A'Nber; Aciano; Sentoria; Mawi Pighember Chichegi |
| Centaurea montana | Mountain Centaury; Berg Centaurie; Centauree De Montagne; Bleuet Vivace |
| Centaurium umbellatum | Kantaron; Centaury; Centaura Menor |
| Cephaelis tomentosa | not available |
| Cheiranthus cheiri | Nioi-Ara-Seito; Sebboy; Wallflower; Alheli Amarillo; Sari Shabboy; Manthur-Asfar |
| Chenopodium ambrosioides | Semin Contra; Feuilles A Vers; Apasote; Meksika Cayi; Simon Contegras; Paico; L.; Semen Contra; Chenopode; Herbe A Vers; Pazote |
| Chenopodium multifidum | not available |
| Chenopodium vulvaria | Fena Kokulu Kazayagi; Vulvaria |
| Chrysanthemum balsamita | Erba Costa; Tanaceto; Alecost; Frauenblatt; Costum; Costmary; Balsamite; Garten Rainfarn; Tuinbalsem; Menthe Coq |
| Chrysanthemum leucanthemum | Sirirgozu; White Oxeye |
| Chrysanthemum parthenium | Varadika; Amargosa; Manzanilla; Matricaria |
| Cimicifuga racemosa | Cimicifuga |
| Cinnamomum cambodianum | not available |
| Cirsium arvense | not available |
| Cissampelos mucronata | not available |
| Cissampelos pareira | Aristoloche Lobee; Feuille Coeur; Bejuco De Raton; Liane Patte Cheval; Gasing-gasing |
| Citrullus colocynthis | Ebucehilkarpuzu; Handhal; Pikrokolokunthia; Phidangourgia; Coloquintida; Visala; Kozalk; Haji Qawugh |