''Gymnanthes'' 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

spurge ''Euphorbia'' is a very large and diverse genus of flowering plants, commonly called spurge, in the family Euphorbiaceae. "Euphorbia" is sometimes used in ordinary English to collectively refer to all members of Euphorbiaceae (in deference to t ...

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 ...

Euphorbiaceae Euphorbiaceae, the spurge family, is a large family of flowering plants. In English, they are also commonly called euphorbias, which is also the name of a genus in the family. Most spurges, such as ''Euphorbia paralias'', are herbs, but some, e ...

first described as a genus in 1788.Tropicos, Gymnanthes Sw.
/ref> It is found primarily in the warmer parts of the Western Hemisphere (from Florida and Mexico south to Argentina), but with some species in central Africa and southwestern Southeast Asia.Kew World Checklist of Selected Plant Families
/ref> Members of the genus are commonly known as oysterwood. The genus has 45

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

and is

pantropical A pantropical ("all tropics") distribution is one which covers Tropics, tropical regions of both hemispheres. Examples of species include caecilians, modern sirenians and the plant genera ''Acacia'' and ''Bacopa''. ''Neotropical'' is a zoogeogra ...

. ;Species ;Species moved to other genera: ''

Actinostemon ''Actinostemon'' is a plant genus of the family Euphorbiaceae first described as a genus in 1841. It is native to South America, Central America, and the West Indies.González Ramírez, J. 2010. Euphorbiaceae. En: Manual de Plantas de Costa Rica. ...

Ditrysinia ''Ditrysinia'' is a plant genus of the family Euphorbiaceae first described as a genus in 1825. It contains only one recognized species, ''Ditrysinia fruticosa'', the Gulf Sebastian-bush, native to the southeastern United States (E Texas, Louisia ...

Microstachys Microstachys is a genus of plants in the Euphorbiaceae first described as a genus in 1824. It is native to tropical Africa, southern Asia, Australia, Papuasia, Mesoamerica, the West Indies, and South America.Govaerts, R., Frodin, D.G. & Radcliffe ...

Sebastiania ''Sebastiania'' is a genus of flowering plants in the family Euphorbiaceae first described in 1821. It is native to North and South America from Arizona and the West Indies south to Uruguay.Webster, G. L. & M.J. Huft. 1988. Revised synopsis of Pa ...

Stillingia ''Stillingia'' is a plant genus of the family Euphorbiaceae, first described for modern science as a genus in 1767. The genus is native to Latin America, the southern United States, and various islands in the Pacific and Indian Oceans. Toothleaf ...

References

Hippomaneae Euphorbiaceae genera Pantropical flora Taxa named by Olof Swartz {{Euphorbiaceae-stub