Cymbidium macrorhizon Lindl. (Synonym : Bletia nipponica Franch. & Sav.)

Family : Orchidaceae

Cymbopogon goeringii (Steud.) A.Camus (Synonym : Andropogon goeringii Steud.)

Family : Poaceae

Cymopterus melanotilingia (H.Boissieu) C.Y.Yoon (Synonym : Cymopterus crassus (Koidz.) M.Hiroe)

Family : Apiaceae

Cynanchum purpureum (Pall.) K.Schum. (Synonym : Cynanchum roseum R.Br.)

Family : Apocynaceae

Cynanchum thesioides (Freyn) K.Schum. (Synonym : Vincetoxicum thesioides Freyn)

Family : Apocynaceae

Cynanchum wilfordii (Maxim.) Maxim. ex Hook.f. (Synonym : Seutera wilfordii (Maxim.) Pobed.)

Family : Apocynaceae

Cynodon dactylon (L.) Pers. (Synonym : Capriola dactylon (L.) Kuntze)

Family : Poaceae

Cynoglossum asperrimum Nakai (Synonym : Cynoglossum asperrimum Nakai var. tosaense (Nakai) H.Hara)

Family : Boraginaceae

Cynoglossum zeylanicum (Sw. ex Lehm.) Thunb. ex Brand (Synonym : Myosotis zeylanica Sw. ex Lehm.)

Family : Boraginaceae

Cynosurus cristatus L.

Family : Poaceae