Rhizome ca. 4 mm in diam. Scapes more than 14 cm, to 34 cm at fruiting, 1--2 mm in diam., basally subglabrous, apically spreading white pubescent. Basal leaves 2 or 3, long petiolate; petiole 5.5--14.5 cm, densely spreading white pubescent; leaf blade ovate-triangular, 4--9 × 2.8--5.9 cm, abaxially pale green, glabrous, adaxially green, base deeply cordate, margin sparsely 7--16-dentate on each side, teeth 3--8 mm wide at base, apex acuminate to long acuminate. Inflorescence paniculate-cymose; bracts subulate, 1--4 mm. Flowers 6--7 mm in diam.; pedicel 5--10 mm, densely spreading pubescent. Sepals white, ovate-elliptic, 4--4.5 × 2--2.5 mm, glabrous, apex acute. Stamens shorter than sepals; anthers yellowish. Follicle yellowish brown, ca. 1 cm, flat, lanceolate-linear, sparsely pubescent, with ca. 4 obliquely transverse veins. Seeds several, ca. 2 mm, obliquely corrugate. Fl. Jul, fr. Jul--Sep. 2n = 16*.

* Forests on slopes; ca. 2300 m. SE Xizang (Mêdog Xian).