Herbs, deciduous. Tubers subglobose, 8-12 mm in diam. Stems 28-60 cm tall, subglabrous. Leaves cauline; stipules caducous, oblong to lanceolate, ca. 10 × 2-4 mm, membranous, margin entire, apex acuminate; petiole 4-20 cm, subglabrous; blade broadly ovate, asymmetric, 10-20 × 7-14 cm, venation palmate, 7(-9)-veined, base obliquely cordate, margin irregularly serrulate, apex acuminate to long acuminate. Inflorescences terminal and axillary, 7-16 cm tall, glabrous, terminal inflorescence racemose at base, axillary inflorescence cymose; bracts caducous, oblate to oblong, 5-13 × 2-17 mm, margin entire, apex obtuse. Staminate flowers: pedicel 0.8-2.2 cm; tepals 4, white to pink, glabrous, outer 2 broadly ovate or suborbicular, 1.1-1.7 × 1-1.7 cm, inner 2 obovate to obovate-oblong, 7-11 × 3-9 mm; stamens 28-140; filaments to 6.1 mm; anthers obovoid, 0.8-1.1 mm, apex emarginate. Pistillate flowers: pedicel 2.5-5 cm; tepals 3, white to pink, glabrous; outer 2 suborbicular or oblate-orbicular, ca. 1.2 × 1.2 cm, inner 1 obovate, ca. 8 × 6 mm; ovary glabrous, 3-loculed; placentae axile, bilamellate; styles fused at base or free; stigmas 2-cleft or U-shaped, spiraled or not. Capsule pendulous, oblong, 10-12 × ca. 7 mm, unequally 3-winged; abaxial wing oblong or triangularly oblong, ca. 1.8 cm; lateral wings narrowly triangular, or all wings narrowly triangular. Fl. Jul, fr. Aug. 2n = 26*.
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A herb. It loses its leaves during the year. It has round tubers 8-12 mm across. The stems are 28-60 cm tall. The leaf stalks are 4-20 cm long. The leaves are on the stem and are broadly oval and unequal on opposite sides. The flowers are in stalks 7-16 cm tall at the ends of the stems and in the axils of leaves. The flowers are white or pink.
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