Herbs. Rhizomes elongate, 5-7 mm in diam. Leaves basal; stipules oblong, 8-10 mm, apex shortly cuspidate; petiole (7-)8-14 cm, rusty villous; blade ovate, asymmetric, 6-8 × 5-6 cm, abaxially villous, adaxially hairy, hairs to 6 mm, venation palmate, 5-7-veined, base deeply cordate, margin irregularly serrate, apex acute or shortly acuminate. Inflorescences 9-18 cm tall, glabrous; peduncle ca. 15 cm, glabrous; bracts oblong, cili-ate. Staminate flowers: pedicel 1.2-1.5 cm; tepals 4, outer 2 ovate-orbicular or broadly ovate, 11-15 × 8-12 mm, abaxially hairy, inner 2 oblong, 8-10 × 2.5-5 mm; stamens numerous; filaments 1-1.5 mm; anthers obovoid-ellipsoid, 1-1.3 mm, apex emarginate. Pistillate flowers: pedicel 1-1.2 cm; ovary villous, 2-loculed; placentae axile, bilamellate; tepals 4 or 5, largest orbicular or broadly ovate, 7-10 × 7-8.5 mm, outside pilose, smallest oblong or obovate-oblong, 6-8 × 3-5 mm, glabrous; styles 2, free or fused to halfway; stigmas 2-cleft, spiraled. Capsule unequally 3-winged. Fl. Jun, fr. Aug.
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