Erect shrub to 2 m high. Branches sharply quadrangular, glabrous or with a few scattered hairs. Leaves 3–7-foliolate, 40–105 mm long, 35–70 mm wide; petiole 8–30 mm long; rachis segments 7–18 mm long; leaflets elliptic, acute to obtuse; terminal leaflets 25–63 mm long, 8–16 mm wide; lateral leaflets 14–40 mm long, 3–13 mm wide. Inflorescence 3–7-flowered; peduncle 3–15 mm long; pedicels 6–17 mm long. Sepals ovate-deltate, 2.5–3 mm long, acute; abaxial surface stellate-tomentose. Petals 6–10 mm long, pink. Filaments usually glabrous.