''Couma'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

s in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Apocynaceae Apocynaceae (from ''Apocynum'', Greek for "dog-away") is a family of flowering plants that includes trees, shrubs, herbs, stem succulents, and vines, commonly known as the dogbane family, because some taxa were used as dog poison Members of the ...

first described as a genus in 1775. It is native to

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southe ...

and

Central America Central America ( es, América Central or ) is a subregion of the Americas. Its boundaries are defined as bordering the United States to the north, Colombia to the south, the Caribbean Sea to the east, and the Pacific Ocean to the west. ...

.Kew World Checklist of Selected Plant Families
/ref> ;Species * '' Couma catingae'' Ducke - Colombia, Venezuela, Guyana, NW Brazil * '' Couma guianensis'' Aubl. - Pará, the Guianas * ''

Couma macrocarpa ''Couma macrocarpa'', known by the common names leche caspi, leche huayo, sorva (a name it shares with its smaller relative '' Couma utilis''), and cow tree, is a species of tropical plant native to tropical, humid Central and South America from ...

'' Barb.Rodr. - widespread from Belize to Bolivia * '' Couma rigida'' Müll.Arg. - Venezuela, Guyana, N Brazil * ''

Couma utilis ''Couma utilis'', called the milk tree, sorvinha, sorveira, sorva (a name it shares with its larger relative ''Couma macrocarpa''), and sorva-pequena, is a species of flowering plant in the subfamily Rauvolfioideae, native to the Orinoco and Amaz ...

'' (Mart.) Müll.Arg. - Colombia, Venezuela, NW Brazil

References

Apocynaceae genera {{Apocynaceae-stub