Taxonomic studies of the genus Rhynchosia Lour. (Phaseoleae, Fabaceae) in South Africa: A review of section Chrysoscias

Four species are recognised, Rhynchosia angustifolia, R. chrysoscias, R. leucoscias and R. microscias. R. leucoscias var. angustifolia is here synonymised with R. angustifolia and the latter name is preserved to take Jacquin's earlier name of Glycine angustifolia referring to the narrow leaflets. The distributions and types of trichomes are reported here for the first time.