Blue Passion Flower 
Booth's willow 
Breynia disticha 
Breynia vitis-idaea 
Bridelia insulana 
Butterfly Vine 
Canadian white violet 
Canary Island spurge 
Canary Islands St. John's Wort 
Canary violet 
Candelabra Tree 
Cassava 
Castorbean 
Cespedesia spathulata 
Ceylon ironwood 
Cheese Tree 
Chenille Plant 
Chinese Tallow 
Chrozophora oblongifolia 
Clustered Flax 
Coastal Willow 
Coca 
Common Blue Violet 
Common Blue Violet