碱毛茛 jian mao gen

Stolons 10--20 cm. Basal leaves 8--25; petiole 1--10 cm, glabrous or sparsely puberulent; leaf blade oblate, reniform, or orbicular-ovate, sometimes pentagonal, 0.5--2 × 0.4--2.6 cm, glabrous, base broadly cuneate, truncate, or subcordate, margin with 3--9 teeth at top, or 3-lobed; central lobe entire; lateral lobes 1- or 2-dentate or entire, sometimes 3-cleft to middle part or 3-partite. Scapes 3--16 cm, glabrous or sparsely puberulent. Flowers 1, sometimes 2--4 in a monochasium, terminal, 6--10 (--14) mm in diam.; bracts linear, 3--5 mm, glabrous, vaginate at base. Sepals 5, elliptic, 2--4.5 mm, glabrous. Petals 5, oblong, 2.8--6.5 × 1--2.5 mm, apex rounded. Stamens (6--)14--20; anthers ellipsoid, 0.6--0.8 mm. Aggregate fruit ovoid, 3.5--6 × 2.2--3.2 mm; achenes obliquely narrowly obovate, 1--1.8 × 0.6--0.8 mm, glabrous. Persistent style ca. 0.3 mm, straight.

Saline damp sandy places by rivers or lakes, meadows, slopes; near sea level--2000 m. Gansu, N and W Hebei, Heilongjiang, Jilin, Liaoning, Nei Mongol, S Ningxia, Qinghai, N Shaanxi, Shanxi, NW Sichuan, Xinjiang, Xizang [Kazakhstan, N Korea, Mongolia, N Pakistan, Russia (Siberia), Sikkim].