Stems scrambling to climbing with tendril-like petioles and leaf-rachises, 4-5 m or more. Leaf blade odd-pinnate, usually 5-foliolate; leaflets deltate to ovate, strongly 3-parted to 3-cleft, proximal leaflets sometimes 3-cleft, 1.5-5.5 × 0.5-4.5 cm, membranous to leathery; segments ovate, deltate, or linear, margins dentate; surfaces pilose, abaxially more densely so. Inflorescences usually axillary, 3-12-flowered simple cymes or compound with central axis or flowers solitary or paired. Flowers unisexual; pedicel slender, (1.1-)1.5-7 cm; sepals wide-spreading, not recurved, white to cream, oblong or elliptic to obovate or oblanceolate, (7-)9-13(-15) mm, abaxially and adaxially pubescent; stamens 40-90; filments glabrous; staminodes 17-35 when present; pistils 35-90. Achenes elliptic to ovate, 3-5 × l.5-2.5 mm, rimmed, short-silky; beak 4-9 cm.
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