Japan Flora: Decumbent, herbaceous or suffrutescent, with slender, elongate, loosely branched stems; stipules thinly mem­branous, lanceolate; leaflets elliptic, 5-10 mm. long, the lateral ones slightly smaller, loosely appressed-pilose beneath; racemes very loosely few-flowered, 1-5 cm, long, the axis flexuous, slender, the pedicels slender, 5-8 mm. long, with scattered spreading glandular hairs, the bracts similar to the stipules, deciduous; flowers 4-5 mm. long, reddish purple; legumes to 15 mm. long, sessile, the joints 3-4, minutely puberulous, elliptic, 3-4 mm. long, about 3 mm. wide.  Aug.-Oct.

Honshu (centr. distr. and westw.), Shikoku, Kyushu; rare. Ryukyus, Formosa, China, India to the Philippines.