Adenium obesum (Desert rose) 
Allamanda angustifolia 
Antelope horns 
Be-still Tree 
Blue periwinkle 
Broad-leaved cotton bush 
Butterfly Weed 
Calotrope 
Caralluma sinaica 
Caralluma tuberculata 
Caribbean Milkweed 
Carissa carandas 
Catharanthus coriaceus 
Catharanthus longifolius 
Catharanthus ovalis 
Ceropegia attenuata 
Cionura 
Clasping Milkweed 
Climbing dogbane 
Common frangipani 
Common Milkweed 
Conkerberry 
Crown Flower 
Cuayote