Plants 25--40 cm tall, glabrous or subglabrous. Stems branched, sulcate. Leaves basal; stipules narrow, margin irregularly lobed; petiole 5.5--7.5 cm; leaf blade 3-ternate, 3.5--5 cm; leaflet blade broadly ovate or broadly rhombic, (0.5--)1--1.8 × (0.5--)1.3--2.2 cm, papery or thinly leathery, both surfaces glabrous or abaxially hispidulous along veins, base rounded or subcordate, apex rounded or obtuse, 3-lobed; lobes slightly toothed; veins raised abaxially, flat adaxially. Inflorescence pleiochasial, flat topped, ca. 10 cm, many flowered. Pedicel 3--7 mm. Sepals 4, early deciduous, white, broadly obovate, ca. 3 × 2 mm. Stamens 25--30; filament base filiform, apex oblanceolate, as broad as or broader than anther; anther oblong, apex obtuse or mucronate. Carpels 4--6; style short. Achenes sessile; body narrowly ovoid, 2--2.7 mm; veins ca. 8. Fl. Jun.

* Forests, scrub, grassy slopes; 2000--2500 m. Sichuan, Yunnan.