Shrubs, to 3 m tall, andromonoecious. Branches with needlelike prickles. Leaves 2-pinnately compound, with a pair of accessory leaflets at each division of rachis; petiole 20-40 cm, pubescent, with sparse prickles; petiolules 0.5-3(-8) mm; leaflets 7-13 per pinna, ovate to broadly ovate or oblong-ovate, 6-15 × 3-10 cm, leathery, abaxially yellow-brown tomentose, especially on veins, adaxially pubescent or strigose, secondary veins 6-8 pairs, base rounded, rarely subcordate, margin crenate to serrulate, apex acute to acuminate. Inflorescence a terminal panicle of umbels, densely fulvous-tomentose, unarmed; primary axis 0-5 cm; secondary axes 30-50(-60) cm; ultimate axes with a terminal umbel of bisexual flowers and 1 to several lateral umbels of male flowers; bracts persistent, linear, 0.8-1.5 cm, densely tomentose; umbels 30-50-flowered; pedicels 4.5-7 mm, tomentose. Ovary 5-carpellate; styles 5, free. Fruit globose, 3-4 mm in diam.; styles persistent, recurved. Fl. Oct-Jan, fr. Dec-Feb.
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