Herbs, erect, to 60 cm tall. Rhizomes poorly developed. Stems often branched, puberulous. Leaves cauline; stipules lanceolate, ca. 1 cm, abaxially villous, apex acuminate and cuspidate; petiole 3.5-9.8 cm, densely puberulous; blade abaxially pale green to red-purple, adaxially dark green with a red-purple V-shaped band, ovate to broadly ovate, asymmetric, 9-14 × 7-10.8 cm, densely puberulous, occasionally sparsely long hairy, venation palmate-pinnate, base oblique, cordate, margin denticulate, very shallowly lobed; lobes triangular, apex acute. Inflorescences puberulous; peduncle 5-6.1(-11) cm; bracts caducous, puberulous, apex acuminate. Staminate flowers: pedicel ca. 1.3 cm; tepals 4, pink or orangish, outer 2 broadly ovate, 1.7-2 × ca. 1.2 cm, outside villous, inner 2 oblong to ovate, ca. 1.4 × 5-7 mm; stamens numerous; filaments ca. 1 mm; anthers oblong-obovoid, ca. 1 mm. Pistillate flowers: pedicel ca. 1.7 cm; tepals 5, pink or orangish, subequal, oblong to broadly ovate, abaxially villous; ovary pubescent, 2-loculed; placentae axile, bilamellate; styles 2, fused at base; stigmas 2-cleft, spiraled. Capsule nodding, obovoid-oblong, 1.8-2.1 cm, unequally 3-winged; adaxial wing broadly ligulate or falcate, 1.2-1.5 × 1.2-1.8 cm, apex rounded; lateral wings smaller. Fl. Aug, fr. Sep. 2n = 20*.
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