Japan Flora: Annual herb 30-60 cm. high; stems terete, sometimes branched, whitish puberulent; stipules subulate or subulate-lanceolate, long- acuminate, few-ribbed at base, persistent, appressed, 5-7 mm. long; leaves 3-7 cm. long, the petioles short, with a solitary sessile gland just below the insertion of the lowest leaflets, theleaflets 30-70, linear-oblong, 8-12 mm. long, 2-3 mm. wide, scattered short-pilose on margin; flowers supra-axillary, 1 or 2 together, 6-7 mm. across, yellow, the bract similar to the stipules but smaller, the bracteoles on the top of the pedicels, narrowly lanceolate, about 2 mm. long, acuminate; calyx-seg¬ments lanceolate or broadly so, 5-6 mm. long, acuminate, short-puberulent and scarious on the margins; petals obovate, slighdy longer than the calyx; fertile stamens 4 with a reduced minute 5th stamen usually also present, the anthers truncate, smooth, glabrous, about 2.5 mm. long, the filaments less than 1 mm. long; style short; legumes flat, broadly linear, 3-4 cm. long, 5-6 mm. wide, short-pilose, sessile, dehiscent, 2-valvcd. Sandy riversides and waste grounds.

Honshu, Shikoku, Kyushu; very common. Korea, Manchuria, and China.