Shrubs, to 6 m tall. Branches with dense to scattered, slender, terete, bristlelike prickles. Petiole 3-12 cm, slender, sometimes with fine prickles; petiolule of central leaflet (0.6-)1.2-2 cm, usually brownish pubescent; leaflets (3-)5, elliptic-obovate or oblong, 5-13 × 3-7 cm, papery, abaxially pubescent on veins, adaxially with scattered hairs, secondary veins 6 or 7 pairs, conspicuous on both surfaces, base broadly cuneate, margin sharply biserrate, apex shortly acuminate or acuminate. Inflorescence terminal, a solitary or compound umbel, borne on leafy shoots, usually with 2-6 umbels together; peduncles 5-7 cm, glabrous; pedicels 1-2 cm, glabrous or slightly pubescent at base. Calyx subentire or with 5 inconspicuous teeth, glabrous. Corolla purple-yellow. Ovary 5-carpellate; styles united into a column. Fruit ovoid-globose, ca. 8 mm; styles persistent, ca. 1.5 mm. Fl. Jun-Jul, fr. Aug-Oct.