Chinese pennisetum 
Chinese spiranthes 
Chives 
Chlorophytum comosum 
Chlorophytum glaucoides 
Chlorophytum tuberosum 
Choco' Lepanthes 
Chocolate lily 
Chocolate Lily 
Christmas Bells 
Christmas Orchid 
chufa sedge 
Cipuropsis capituligera 
Cipuropsis hospitalis 
Cischweinfia dasyandra 
Clackamas iris 
Claderia viridiflora 
Clamshell Orchid 
Clasping twisted stalk 
Climbing Aroid 
Climbing dayflower 
Climbing Flower Cup 
Clustered Bur-reed 
Clustering fishtail palm