Japan Flora: Evergreen, woody vine; leaves peuoled, the raebis ending in a tendril, the pinnae 4, the leaflets lustrous, coriaceous, 2-4 on each pinna, oblong to obo­vate, 3-8 cm. long, subacute to obtuse; racemes pedunculate, usually aggregated in a terminal panicle; flowers sessile, yel­lowish green, about 6 mm. long; legumes 30-60 cm. long, 7-10 cm. wide, curved, constricted between the seeds which are 5 cm. in  iameter. Evergreen forests near seashores.

Kyushu (Yakushima); rare. Ryukyus, Formosa, and Tropics of the New and Old Worlds.