Annual herbs, 20-40 cm. Stems prostrate or ascending, branched at base, ridged, pilose. Leaves 3-foliolate; stipules lanceolate-hastate, 5-7 mm; petioles 1-2.5 cm; leaflets oblong-obovate to obtriangular, (3-)5-12 × (3-)4-8 mm, pilose at least on midrib abaxially, subglabrous adaxially, lateral veins 5-8 pairs, base cuneate, margin denticulate in apical 2/3, apex truncate. Flower axillary, solitary at basal portion of stem, 2(or 3) in apical portion, sessile or peduncles developed, 6-8 mm, with straight dense hairs. Corolla yellow, 6-8 mm; standard evidently longer than wings and keel. Ovary linear; ovules 18-24; style short and flat. Legume straight, cylindric, 40-50(-80) × 1-2 mm, appressed pubescent, veins reticulate, forming a pattern of squares or pentagons, apex hooked. Seeds numerous, brown, oblong-elliptic, ca. 2 mm. Fl. May-Jul, fr. Jun-Aug.
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An annual herb. It grows 20-40 cm long. The stems lie along the ground. The leaves are compound. They have 3 leaflets. The leaves are alternate. There are teeth along the edge. The flowers are yellow. The fruit is dry and splits open when ripe. The fruit are 3-10 cm long. There are many brown seeds. They are 2 mm across.
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