Japan Flora: Tree with glabrous branches; leaves 15-30 cm. long, the leaflets 5-7, opposite, ovate or broadly so, 5니0 cm. long, 4-8 cm. wide, abruptly acuminate with an obtuse tip, glabrous; racemes peduncled, to 20 cm. long, many-flowered, short-pilose; flowers 15-18 mm. long, pedicel led; legumes glabrous, 5-6 cm. long, about 2.5 cm. wide, rather thick. Near seashores.
Kyushu (Yakushima); rare. Ryukyus, Formosa, and the Tropics of Asia and Australia.