Stems 1-3, 15-20 cm, with 2-5 leaves. Basal leaves 2-4; petiole slender, 3-5.5 cm; leaf blade abaxially greenish, adaxially deep green, reniform, 1.2-2.2 × 1.8-3 cm, 7-veined abaxially, base deeply cordate, apex rounded, apiculate. Cauline leaves reniform or suborbicular, 0.4-1.8 × 0.6-1.8 cm, base deeply cordate, sometimes with a few caducous, rusty brown appendages. Flower ca. 1.5 cm in diam.; hypanthium inconspicuous. Sepals lanceolate or ovate-lanceolate, ca. 3.5 × 1.5 mm, 3-veined, margin entire, apex acuminate. Petals white, oblanceolate or oblong, ca. 5.5 × 1.2 mm, base attenuate, margin fimbriate throughout with fimbriae turgid at apex and becoming clavate, apex rounded. Anthers ellipsoid, ca. 1.2 mm; filaments ca. 5 mm; staminodes 3-4 mm, divided into 3 rays or narrowly linear lobes 1.2-1.5 mm with globose glands at apex. Ovary superior, ovoid; style very short; stigma 3- or 4-lobed. Capsule densely purple punctate, depressed globose. Seeds brown, glossy, oblong. Fl. Jul-Aug, fr. Sep.

* Shaded moist grassy slopes, roadsides; 2000-2500 m. C and NE Sichuan (Baoxing Xian, Chengkou Xian, Wenchuan Xian).