Japan Flora: Diffuse suffrutescent shrub with procumbent or ascending slender branches, sparsely appressed-pilose while young; stipules lanceolate, 8-12 mm, long, long-acuminate, many-nerved; leaflets rounded to re­tuse, the terminal obovate, 25-3 cm. long, 1.5-2 cm. wide, the lateral obovate to oblong, 1.5-2.5 cm. long, 1-1.5 cm. wide, pilose while young; racemes 6-8 cm. long, with spreading hairs, the bracts narrowly ovate, caducous; flowers reddish purple, 4-5 mm. long; calyx rather (뇨eply lobed; legumes about 15 mm. long, erect, sessile，the joints 4-5, about 3 mm. long and as wide, flat, with minute uncinate whitish hairs. Sept-Oct. Grassy slopes and roadsides in lowlands.

Hon­shu (centr. distr. and westw.)，Shikoku, Kyushu; locally common. Bonins, Korea (Quelpaert Isl.), Ryukyus, For­mosa, China to India and Malaysia. 

var. patulepilosum (Ohwi) Ohwi. Hairs spreading on stems and branches. Honshu (Kii Prov,).