Japan Flora: Short-pilose shrub with ascending to spreading branches and branchlets; stipules subulate; petioles 3-5 cm. long, slightly flattened and without groove on upper side; leaflets broadly lanceolate, 7-12 cm. long, acute, the lateral ones slightly smaller, deep green on upper side, slightly glaucous and with slightly raised veinlets beneath; racemes terminal and axillary, in leafy panicles, the bracteoles lanceolate, subtending the calyx, O.5-O.8 mm. long; flowers 5-6 mm. long; legumes 5-7 cm. long, flat, the joints 6, slightly contracted at each end, narrowly oblong, 8-13 mm. long, 7-8 mm. wide, with rusty-brown uncinate hairs. Aug.-Sept. Woods.

Honshu (Suruga Prov. and Chugoku Distr.), Shikoku, Kyushu. s. Korea, Ryukyus, Formosa, China to India, and Malaysia.