Shrubs, to 4 m tall, hermaphroditic. Branches prickly, glabrous. Leaves palmately compound, with 5-9 leaflets; petiole 6-16 cm, slender; petiolules 0-1.5 cm, sparsely pubescent; leaflets ovate to elliptic-lanceolate, 8-20 × 3-8 cm, membranous, abaxially glabrous or sparsely pubescent, adaxially with scattered short bristles, secondary veins 6-8 pairs, base narrowly cuneate to nearly acuminate, margin serrulate, apex long acuminate, rarely acute. Inflorescence axillary, unarmed, densely ferruginous tomentose; primary axis to ca. 10 cm, with 4 or 5(-10) umbels; peduncles 2-4(-5) cm; umbels 1.5-2.5 cm in diam.; pedicels filiform, 5-9 mm, expanding in fruit to 1.5 cm. Ovary 2-carpellate. Fruit subglobose, ca. 5 mm in diam.; styles persistent, ca. 2.5 mm. Fl. Aug-Oct, fr. Oct-Dec.
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