Plants 20--65 cm tall, glabrous. Rootlets enlarged. Stems branched. Leaves all basal; stipules semiorbicular, membranous, margin entire; petiole ca. 6 cm; leaf blade 2- or 3-ternate, 5--10 cm; leaflet blade orbicular, 1--2 cm, herbaceous, base rounded or subcordate, apex rounded, inconspicuously 3-lobed; veins raised abaxially. Inflorescence monochasial, not enlarged. Pedicel filiform, 0.6--1.6 mm. Sepals 4, white or purplish tinged, obovate, 3--4.5 mm. Filaments oblanceolate, apex narrower or broader than anther; anther elliptic, 0.5--1.2 mm, apex obtuse. Carpels 3--6; style straight, short. Achenes fusiform, 4--5 mm; veins 6--8. Fl. Mar--May.

* Forests, slopes, damp rocky ledges; 100--1500 m. Anhui, Jiangsu, Jiangxi, Zhejiang.