''Gymnanthes'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

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 group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

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, ...

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 tropical regions of both hemispheres. Examples of species include caecilians, modern sirenians and the plant genera ''Acacia'' and ''Bacopa''. ''Neotropical'' is a zoogeographic term ...

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

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 Sebastiania Stillingia''

References

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