Perennial herbs, 25-30 cm. Stem erect, spreading branching, subquadrangular, sparsely pilose. Leaves 3-foliolate; stipules ovate-lanceolate, incised, 4-6 mm, pilose; petiole 3-5 mm; leaflets broadly obovate, 6-10(-12) × 3-6(-8) mm, pilose at least on midrib abaxially, glabrous adaxially, base cuneate, margin irregularly biserrate. Flowers (3-)6-8(-12) in subumbellate heads; peduncle 20-40 mm, pilose, straight; pedicels ca. 2 mm. Calyx ca. 3.5 mm; teeth subulate-lanceolate. Corolla yellow, (5-)6-7 mm. Ovary linear, sparsely pilose; ovules 7-9. Legume elliptic-oblong, 8-10 × ca. 4 mm, veins crosswise, thin and conspicuous, both ends rounded. Seeds 2-4. Fl. and fr. Jul-Aug.
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