Corallorhiza trifida Châtel. (Synonym : Ophrys corallorhiza L.)

Family : Orchidaceae

Corchoropsis crenata Siebold & Zucc.

Family : Tiliaceae

Corchoropsis crenata Siebold & Zucc. var. hupehensis Pamp. (Synonym : Corchoropsis tomentosa (Thunb.) Makino var. psilocarpa (Harms & Loes. ex Gilg & Loes.) C.Y.Wu & Y.Tang)

Family : Tiliaceae

Corchoropsis intermedia Nakai (Synonym : Corchoropsis crenata Siebold & Zucc. var. intermedia (Nakai) M.Kim)

Family : Tiliaceae

Corchorus capsularis L.

Family : Malvaceae

Coreanomecon hylomeconoides Nakai (Synonym : Chelidonium hylomeconoides (Nakai) Ohwi)

Family : Papaveraceae

Coreopsis basalis (Otto & A.Dietr.) S.F.Blake (Synonym : Calliopsis basalis Otto & A.Dietr.)

Family : Asteraceae

Coreopsis lanceolata L. (Synonym : Coreopsis lanceolata L. var. pumila Moldenke)

Family : Asteraceae

Coreopsis tinctoria Nutt. (Synonym : Calliopsis tinctoria (Nutt.) DC.)

Family : Asteraceae

Coriandrum sativum L. (Synonym : Selinum coriandrum E.H.L.Krause)

Family : Apiaceae