''Stephanostegia'' is a genus of

plant Plants are the eukaryotes that form the Kingdom (biology), kingdom Plantae; they are predominantly Photosynthesis, photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with c ...

in the family

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. Notable mem ...

first described as a genus in 1888. The entire genus is

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

Madagascar Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's List of islands by area, f ...

.Kew World Checklist of Selected Plant Families
/ref> ;Species * '' Stephanostegia capuronii'' Markgr. - E Madagascar * '' Stephanostegia hildebrandtii'' Baill. - N + W Madagascar

References

Endemic flora of Madagascar Apocynaceae genera Taxonomy articles created by Polbot Taxa named by Henri Ernest Baillon {{Apocynaceae-stub