Herbs, deciduous. Rhizomes elongate, moniliform, ca. 8 mm in diam. Leaves basal; stipules caducous, broadly ovate to subtriangular, 6-7(-8) × 3-4.6 mm, glabrous, apex cuspidate; petiole (4-)10-15(-20) cm, densely villous; blade ovate to oval, asymmetric, 7-13 × 7-10(-14) cm, abaxially densely hirsute, adaxially sparsely hispidulous, venation palmate, 5-veined, base deeply cordate, margin irregularly serrulate, apex acute or obtuse, rarely rounded. Inflorescences 14-20 cm tall; bracts ovate-oblong or oblong, 4-7 × 2.2-4.5 mm, margin glandular, apex obtuse. Staminate flowers: pedicel 1.1-2.1 cm; tepals 4, pink, outer 2 broadly ovate to orbicular, 1.4-2.3 × 1.2-1.9 cm, abaxially with long glandular hairs, inner 2 obovate to oval, 11-18 × 9-13 mm; stamens numerous; filaments ca. 1.4 mm; anthers obovoid-globose, 1.3-1.7 mm. Pistillate flowers: pedicel to 1.8 cm; tepals 5, pink, largest broadly elliptic to suborbicular, 1.2-1.8 × 1-1.6 cm, abaxially pubescent, smallest narrowly obovate to ovate, 1.3-2 × 0.9-1.2 cm; ovary sparsely villous, 2-loculed; placentae axile, bilamellate; styles 2, 4-6 mm, fused at base; stigmas 2-cleft, spiraled. Capsule nodding, 8-10 mm, unequally 3-winged; abaxial wing ligulate, 1.2-1.5 × 1.1-1.6 cm; lateral wings smaller. Fl. Apr-May, fr. Jul.
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