山地秋海棠 shan di qiu hai tang

Herbs. Rhizomes elongate, 8-15 mm in diam. Leaves basal; stipules caducous; petiole 9-24 cm, densely reddish brown villous; blade ovate-suborbicular or broadly ovate, asymmetric, 11-33 × 13-25 cm, abaxially reddish brown hirsute, adaxially reddish brown hirsute on veins, venation palmate-pinnate, 7-9-veined, base oblique, deeply cordate or auriculate-imbricate, margin irregularly and remotely denticulate, apex acuminate to shortly caudate. Inflorescences 7-15 cm tall, densely reddish brown villous; bracts lanceolate, 7-8 mm, margin ciliate. Staminate flowers: pedicel 5-10 mm; tepals 4, pinkish to pink, outer 2 broadly ovate to orbicular, 1.2-1.3 × 1.3-1.5 cm, abaxially villous, inner 2 obovate, ca. 10 × 8 mm; stamens numerous; filaments free, 1-1.5 mm; anthers oblong, 0.8-0.7 mm. Pistillate flowers: tepals 4(or 3), pinkish to pink, outer 2 orbicular, 1-1.5 × 1.1-1.4 cm, abaxially villous or rarely glabrous, inner 2(or 1) obovate or elliptic, 10-11 × 4-6 mm; ovary villous or rarely glabrous, 2-loculed at base; placentae parietal toward apex of ovary, others axile, bilamellate; styles 2, free; stigmas 2-cleft, spiraled. Capsule nodding, unequally 3-winged; adaxial wing oblate, ca. 1.5 cm, apex rounded; lateral wings smaller. Fl. Apr.

Forests or scrubby vegetation, shaded moist environments, on mountain slopes or by streams; 100-1200 m. SE Yunnan [Vietnam].