Arachnothryx leucophylla 
Ashanti Blood 
Asperula libanotica 
Asperula setosa 
Azure Bluet 
Beadplant 
Blue field-madder 
Blue Woodruff 
Broad-leaved Crucianella 
Burflower-Tree 
Buttonbush 
Callipeltis aperta 
Callipeltis cucullaris 
Callipeltis factorovskyi 
Candy Corn Vine 
Catchweed Bedstraw 
Caucasian Crosswort 
Chinese Ixora 
Coffea arabica 
Common Gardenia 
Coprosma robusta 
Corn Cleavers 
Crosswort 
Crucianella ciliata