Koehneria is a monotypic genus of flowering plants belonging to the family Lythraceae.

[1] The only species is Koehneria madagascariensis (Baker) S.A.Graham, Tobe & Baas[2] It is native to Madagascar.

[2] The genus name of Koehneria is in honour of Bernhard Adalbert Emil Koehne (1848–1918), a German botanist and dendrologist born near Striegau, a town known today as Strzegom, Poland,[3] The Latin specific epithet of madagascariensis means "coming from Madagascar", and both genus and species were first described and published in Ann.

Missouri Bot.

Vol.73 on pages 805-806 in (1986 publ.