Neonotonia wightii

Neonotonia wightii, the perennial soybean, is a species of flowering plant in the family Fabaceae, native to subSaharan Africa, Yemen, India, and Sri Lanka, and widely introduced as a forage in Brazil, Bolivia, Paraguay, northern Argentina, the Mascarene Islands, Peninsular Malaysia, Java, New Guinea, Queensland and New South Wales in Australia, and Fiji. It is shade tolerant.

Subtaxa
The following subtaxa are accepted:
 * Neonotonia wightii var. longicauda (Schweinf.) J.A.Lackey
 * Neonotonia wightii var. mearnsii (De Wild.) J.A.Lackey
 * Neonotonia wightii subsp. petitiana (A.Rich.) J.A.Lackey
 * Neonotonia wightii subsp. pseudojavanica (Taub.) J.A.Lackey
 * Neonotonia wightii subsp. wightii