Callistephus chinensis (L.) Nees (Synonym : Amellus speciosus Gaterau)

Family : Asteraceae

Callitriche japonica Engelm. ex Hegelm. (Synonym : Callitriche nana B.C.Ho & Vo)

Family : Callitrichaceae

Callitriche palustris L. (Synonym : Callitriche tenuifolia Thuill. ex Pers.)

Family : Callitrichaceae

Caltha natans Pall. (Synonym : Thacla natans (Pall.) Deyl & Soják)

Family : Ranunculaceae

Caltha palustris L. (Synonym : Caltha arctica R.Br. subsp. sibirica (Regel) Tolm.)

Family : Ranunculaceae

Calycanthus floridus L. var. glaucus (Willd.) Torr. & A.Gray (Synonym : Calycanthus inodorus Elliott)

Family : Calycanthaceae

Calypso bulbosa (L.) Oakes (Synonym : Cypripedium bulbosum L.)

Family : Orchidaceae

Calystegia dahurica (Herb.) Choisy (Synonym : Convolvulus pellitus Ledeb.)

Family : Convolvulaceae

Calystegia hederacea Wall. (Synonym : Convolvulus acetosifolius Turcz.)

Family : Convolvulaceae

Calystegia pubescens Lindl. (Synonym : Calystegia japonica Choisy f. angustifolia Makino ex H.Hara)

Family : Convolvulaceae