Couma is a genus of flowering plants in the family Apocynaceae first described as a genus in 1775. It is native to South America and Central America. Species \n* Couma catingae Ducke - Colombia, Venezuela, Guyana, NW Brazil \n* Couma guianensis Aubl. - Pará, the Guianas \n* Couma macrocarpa Barb.Rodr. - widespread from Belize to Bolivia \n* Couma rigida Müll.Arg. - Venezuela, Guyana, N Brazil \n* Couma utilis (Mart.) Müll.Arg. - Colombia, Venezuela, NW Brazil