爬地毛茛 pa di mao gen

Herbs perennial. Roots fibrous. Stems prostrate, stoloniferous, to 20 cm, glabrous, branched, rooting at nodes. Basal leaves ca. 10; petiole 2--3.6 cm, glabrous; blade usually 3-sect, sometimes 3-partite, pentagonal, 3--6(--10) × 5--9(--15) mm, papery, glabrous, base cordate, central segment rhombic or oblong, usually entire; lateral segments obliquely flabellate, 1 or 2 × unequally 2-cleft. Stem leaves similar to basal ones but short petiolate. Flowers solitary, terminal, 0.5--0.7 cm in diam. Pedicel 0.5--2 cm, glabrous. Receptacle glabrous. Sepals 5, elliptic, ca. 2 mm, glabrous. Petals 5, elliptic or narrowly elliptic, 2.8--3 mm, nectary pit without a scale, apex obtuse or rounded. Stamens 6 or 7; anthers oblong. Aggregate fruit subglobose, ca. 3 mm in diam.; carpels ca. 12. Achene slightly bilaterally compressed, obliquely obovoid, ca. 1 × 0.8 mm, glabrous; style persistent, ca. 0.2 mm. Fl. Jun--Sep.

Forests, scrub, grassy slopes, by streams; 3400--4100 m. Sichuan, S Xizang, NW Yunnan [Nepal, Sikkim].