Japan Flora: Brownish woolly-pubescent while young; leaves slightly thinner, glaucous beneath, the lateral nerves regularly arranged; flowers 15-18 mm. long, white, in terminal panicles; calyx 5-6 mm. long, short-pubescent; legumes nearly wingless, slightly thickened on the margins. June-Aug.
Honshu (Kanto Distr. and westw.), Shikoku, Kyushu; rare.