Psophocarpus

Psophocarpus is a genus of flowering plants in the legume family, Fabaceae. It includes nine species of climbing herbs or subshrubs native to tropical Africa. Typical habitats include seasonally-dry tropical forest and forest margins, moist wooded grassland and grassland, thicket, swamp, and secondary vegetation. It belongs to subfamily Faboideae.

Species
There are currently 10 living species of Psophocarpus:

Sect. Psocarpus Sect. Unifoliate
 * Subgenus Psophocarpus
 * P. grandiflorus R.Wilczek – umuharakuku
 * P. obovalis Tisser.
 * P. palustris Desv.
 * P. scandens (Endl.)Verdc. – anonantaka
 * P. tetragonolobus (L.) DC. – asparagus bean, princess bean, four-angled bean, winged bean
 * P. lecomtei Tisser.
 * P. monophyllus Harms
 * Subgenus Vignopsis
 * P. indicus Wild. – goa bean, winged bean
 * P. lancifolius Harms
 * P. lukafuensis (De Wild.)R.Wilczek