Tournaya is a monotypic genus of flowering plants belonging to the family Fabaceae.[1] It just contains one species, Tournaya gossweileri (Baker f.) A.Schmitz
Its native range is western central Tropical Africa and is found in the countries of Angola, Congo, Gabon and Zaïre.[1]
The genus name of Tournaya is in honour of Roland Louis Jules Alfred Tournay (1925–1972), a Belgian botanist and publisher of the bulletin of the National Botanic Garden of Belgium (now the Meise Botanic Garden).[2] The Latin specific epithet of gossweileri is due to the Swiss-born Angolan botanist, John Gossweiler (1873-1952), who collected the type specimen of G. lanceolata. Both the genus and the species were first described and published in Bull. Jard. Bot. Natl. Belg. Vol.43 on page 397-398 in 1973.[1]
It was downgraded to a synonym of Gigasiphon in 2010,[3] but then re-established as a separate genus in 2020.[4]