Plant glabrous. Rhizome ca. 16 cm, ca. 4 mm in diam., densely scaly; scales grayish, broadly ovate, ca. 2 mm, apically rounded. Leaves ca. 3, basal, 3-foliolate or sometimes simple, abaxially whitish green, apically toothed; veins inconspicuous; petiole 6.2--8.3 cm. Compound leaves with leaf blade 6--7.8 × 4.5--7 cm; lateral leaflets obliquely obovate; central leaflet rhombic-ovate, 3.7--4.3 × 2.3--2.8 cm, base cuneate, margin distally crenate, apex rounded. Simple leaves with leaf blade broadly obovate, ca. 3.8 × 3.3 cm. Flowering stem 23--25 cm tall. Inflorescences monochasial, 3-flowered; bracts sessile or shortly petiolate, obovate, ca. 1.5 mm, 3-lobed or entire. Pedicel 0.4--1.7 cm. Sepals pinkish, obovate, ca. 3.5 mm. Petal limbs flabellate, ca. 2.5 mm, apex retuse; claw longer than limb. Stamens ca. 3.5 mm; anthers ellipsoid, ca. 0.5 mm. Follicles linear, 8--10 × ca. 1.5 mm; persistent styles ca. 2.5 mm. Seeds brown, ellipsoid, ca. 2.5 mm in diam. Fl. and fr. Apr.

* Rocky areas by streams; 700--800 m. S Sichuan (Junlian Xian).