Subshrubs, 30-70 cm tall. Young stems pubescent. Leaves caespitose or scattered, 3-foliolate; petiole 5-10 cm, glabrous or sparsely pubescent; leaflet blade ovate to ovate-lanceolate, 10-15 × 3.5-6 cm, abaxially sparsely pubescent, adaxially glabrous except with minute hooked hairs on midvein, base cuneate, orbicular, or oblique, apex long acuminate. Racemes terminal or laxly branched panicles, laxly flowered. Pedicel 3-4 mm, elongated to 1.1-1.3 cm at fruiting, densely hooked pubescent. Calyx 2-3 mm. Corolla pink, ca. 5 mm; standard broadly elliptic, shortly clawed; wings and keel clawed. Ovary long stipitate. Legume flat, slightly curved, minutely hooked pubescent, 2-or 3-jointed; articles obliquely triangular, 1.2-1.4 cm × 4-6 mm; stipe 1-1.2 cm; fruiting pedicel 1.1-1.3 cm. Fl. and fr. Aug-Sep.
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