Herbs 0.8-1.2 m tall. Rhizomes transversely elongating, columnar, 3-4 cm in diam., pale purple inside. Stems angular, subglabrous. Leaves palmately compound; petiole 15-40 cm, sheathlike and long hairy at base; leaflets 5-7, obovate to oblanceolate, 7.5-30 × 2.7-12 cm, herbaceous or thinly leathery, abaxially long pilose along veins, adaxially sparsely subsessile glandular hairy along veins, base cuneate and sessile, margin doubly serrate, apex shortly acuminate. Pleiochasium paniculate, ca. 26 cm; branches and pedicels white paleaceous hairy and sparsely glandular hairy. Sepals (4 or)5(or 6), spreading, subtriangular, 1.5-2 × ca. 1.8 mm, abaxially and marginally pilose and shortly glandular hairy, adaxially glabrous or subsessile glandular hairy, veins arcuate and pinnate, not or partly to completely confluent at apex, apex shortly acuminate. Stamens 1.2-2.6 mm. Ovary subsuperior, ca. 1 mm; styles 2, 0.8-1 mm. Capsule ovoid, rostrate. Seeds many, brown, fusiform, 1.8-2 mm. Fl. and fr. May-Oct. 2n = 60.
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A herb. It can grow to 1.8 m tall. It has long rhizomes 3-4 cm across. They are pale purple inside. The stems are angular. The leaf stalks are 15-40 cm long. The leaves are compound with lobes spread out like fingers on a hand. There are 5-7 leaflets. The leaves are 8-30 cm long by 3-12 cm wide.
It is a temperate plant. It grows on the edges of forests and rock clefts between 1,100-3,800 m above sea level. In Sichuan and Yunnan.
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