Cockies Tongue 
Cockspur coral tree 
Colutea cilicica 
Common aotus 
Common Broom 
Common Flat-pea 
Common Gorse 
Common Hovea 
Common Kidneyvetch 
Common Laburnum 
Common Phyllota 
Common Restharrow 
Common sainfoin 
Common Vetch 
Common wedge-pea 
Coojong 
Cootamundra Wattle 
Coral vine 
Corazoncillo de Lanzarote 
Coronilla minima 
Coronilla repanda 
Coronilla scorpioides 
Coues' Senna 
Cow vetch