Herbs, rhizomatous, erect, ca. 50 cm tall or more. Rhizomes elongate, to 12 cm in diam. Stems 3-6 mm in diam., scabrous, densely rusty hirsute. Leaves basal and cauline; stipules caducous, triangular, 1.5-2 cm, brown villous; petiole 4-7(-11) cm, densely rusty villous; blade oblate-orbicular or suborbicular, asymmetric, 15-20 × 12-24 cm, both surfaces sparsely red hirsute, more densely so on veins, venation palmate, 6-or 7-veined, base oblique, shallowly cordate, margin remotely denticulate, shallowly lobed to distinctly lobed; lobes 5-7, triangular-ovate to ovate-lanceolate, apex acuminate. Inflorescences densely brown villous; peduncle 10-15 cm; bracts triangular, 5-6 × 4-5 mm, both surfaces and margin villous, apex caudate. Staminate flowers: tepals 4, outer 2 broadly ovate, ca. 1.7 × 1-1.2 cm, outside rusty villous, inner 2 obcordate, ca. 2 × 2 cm, glabrous; stamens numerous; anthers linear; connective extended, acute. Pistillate flowers: tepals 5, unequal, ovate, 1.2-2 cm, abaxially villous; ovary rusty villous, 2-loculed; placentae axile, bilamellate or 4-cleft; styles 2, free; stigmas 2-cleft, spiraled. Capsule nodding, 1.5-1.8 cm × 7-9 mm, rusty villous, unequally 3-winged; abaxial wing oblate-triangular, hirsute, apex obtuse; lateral wings lunate. Fl. Apr.
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A herb. It is erect and has an underground stem or rhizome. It grows 50 cm tall. There are leaves at the base and on the stem. The leaf stalk is 4-7 cm long. It has rusty hairs. The blade is almost round but unequal on opposite sides. It is 15-20 cm long by 12-24 cm wide. There are teeth on the edge toward the tip.
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