Bugweed 
Calystegia silvatica 
Camonea pilosa 
Cantabrican morning glory 
Cape gooseberry 
Capsicum frutescens 
Carolina horsenettle 
Chili Pepper 
Chinese lantern plant 
Clammy groundcherry 
Common Morning Glory 
Convolvulus coelesyriacus 
Convolvulus compactus 
Convolvulus fatmensis 
Convolvulus lanatus 
Convolvulus libanoticus 
Convolvulus oleifolius 
Convolvulus phrygius 
Convolvulus pilosellifolius 
Convolvulus secundus 
Convolvulus spicatus 
Convolvulus supinus 
Cressa cretica 
Cup of Gold Vine