天山毛茛 tian shan mao gen

Herbs perennial. Roots fibrous, slightly thickened above. Stems 4--16 cm, sparsely to densely subappressed puberulent, branched. Basal leaves ca. 4; petiole 2--4 cm, appressed puberulent; blade 3-fid or 3-partite, rarely 3-lobed, pentagonal, broadly ovate, or rhombic, 0.9--1.8 × 0.8--2 cm, papery, abaxially sparsely puberulent, base subtruncate or truncate-cordate, central lobe narrowly obovate or long elliptic, 3-lobed or undivided; lateral lobes obliquely obovate or obliquely flabellate, unequally 2-lobed. Stem leaves short petiolate or sessile, palmatisect, segments linear, abaxially densely pubescent. Flowers solitary, terminal, 0.9--1.5 cm in diam. Receptacle puberulent or glabrous. Sepals 5, orbicular-ovate, 3--5 mm, abaxially densely appressed yellowish pubescent. Petals 5, obovate, 5--9 × 2--5.5 mm, nectary pit without a scale, apex rounded. Stamens numerous; anthers oblong. Aggregate fruit ovoid, 5--6 × 4--5 mm. Achene slightly bilaterally compressed, obliquely ellipsoid, 1.2--2 × ca. 1 mm, sparsely appressed puberulent or glabrous; style persistent, 0.7--1 mm.

2300--4500 m. S Gansu, Qinghai, SW Sichuan, W and S Xinjiang, W and N Xizang, NW Yunnan [N India, Nepal].