Japan Flora: Stems rather stout, erect, thinly white-pubescent, 30- 50 cm. long; leaves 8-10 cm. long, short-petioled, the stipules broadly lanceolate, free, obtuse, 6-10 mm. long, thinly membranous, the leaflets 9-13, oblong to narrowly ovate, 2-4 cm. long, 7-15 mm. wide, slightly retuse, slightly paler beneath, glabrescent; racemes 1.5-3 cm. long, 6- or 7-flowered, the bracts membranous; calyx 7-8 mm. long, glabrescent, the teeth elongate-triangular, 1-1.5 mm. long, slightly black-pubescent; standard narrowly obovate, keel nearly as long as the oblong wing, shorter than the standard; legumes ellipsoidal, glabrous, stipitate. July.