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Plants
| Title | Common Name |
|---|---|
| Cedrela sinensis | Ch'Un |
| Celastrus scandens | Waxwork; American Bittersweet; Falsa Dulcamara; Douce Amer De L'Amerique; Amerikaanse Bitterzoet; Bittersweet; Amerikanische Bittersuss |
| Centaurea solstitialis | Yellow Star Thistle |
| Centaurium beyrichii | Rock Centaury |
| Centaurium calycosum | Buckley Centaury |
| Ceodes brunoniana | not available |
| Cephaelis ipecacuanha | Ipeka; Altim Koku; Tokon; Ipecac |
| Cephalanthus occidentalis | not available |
| Cerbera manghas | Bintaru; Bentan |
| Cercocarpus montanus | Mountain Mahogany |
| Cestrum dumetorum | not available |
| Cestrum nocturnum | Jasmin De Nuit; Lilas De Nuit; Night-Blooming Jessamine; Jasmin Caca Chatte; Dama De Noche |
| Cestrum parqui | Palqui |
| Cetraria juniperina | not available |
| Chailletia toxicaria | not available |
| Cheiranthus cheiri | Nioi-Ara-Seito; Sebboy; Wallflower; Alheli Amarillo; Sari Shabboy; Manthur-Asfar |
| Chelidonium majus | Kirlangicotu; Kusa-No-O; Celandine; Kusanowo; Celidonia; Otompui Kina; Svalert; Kelta Ruoho; Schelkraut |
| Chenopodium ambrosioides | Semin Contra; Feuilles A Vers; Apasote; Meksika Cayi; Simon Contegras; Paico; L.; Semen Contra; Chenopode; Herbe A Vers; Pazote |
| Chisocheton sp | not available |
| Chloranthus serratus | Chi Chi; Chang Erh Hsi Hsin |