Herbs, deciduous. Tubers 3-15 mm in diam. Leaves 1(-3), basal or on very short stem; stipules triangular-ovate, 3.9-1.2 cm, margin ciliate, apex cuspidate; petiole 6.8-13 cm, pubescent; blade ovate to broadly ovate, nearly symmetric, 7-14 × 5-9 cm, very thin when dried, villous, venation palmate-pinnate, base cordate, margin serrulate, apex acute or acuminate. Inflorescence terminal, cymose, 6-20 cm; bracts oblong, 3.4-7.5 × 1.5-2.5 mm, margin ciliate. Staminate flowers: pedicel 6.5-34 mm; tepals 4, outer 2 ovate, 9.5-15.7 × 7.5-14 mm, abaxially sparsely red pubescent, inner 2 oblong, 6.1-13.1 × 1.9-7.1 mm, glabrous; stamens 10-40; filaments 0.8-2.3 mm, fused at base; anthers oval, 0.5-1 mm. Pistillate flowers: tepals 3, outer 2 broadly ovate, 6.2-9.3 × 5-8.6 mm, abaxially red hairy, inner 1 oval, 5.7-7.5 × 3.1-4.7 mm; ovary oval, ca. 3.7 × 2.5 mm, hairy, 3-loculed; placentae axile, undivided; styles 3, 2.6-4.5 mm, fused at base; stigmas 2-cleft, spiraled. Capsules pendulous; unequally 3-winged; abaxial wing triangular, 4-13 mm; lateral wings smaller.
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