圆叶毛茛 yuan ye mao gen

Herbs perennial. Roots fibrous, slightly thickened at base. Stems 8--36 cm, puberulent, sometimes glabrous below, branched. Basal leaves 4--9; petiole 2--5 cm, glabrous; blade rounded-ovate, ovate, or deltoid-ovate, 1--3 × 1--3 cm, papery, glabrous, base subtruncate or subcordate, margin dentate or crenate, apex obtuse or rounded. Lower stem leaves similar to basal leaves or cuneate, 3-lobed; upper ones short petiolate or sessile, 3-sect or undivided, ciliate or sparsely puberulent. Flowers solitary, terminal, 1--1.7 cm in diam. Receptacle puberulent. Sepals 5, subelliptic, 4--5.5 mm, abaxially appressed pubescent. Petals 5, narrowly obovate, 5--9 × 3--4 mm, nectary pit without a scale, apex rounded. Stamens numerous; anthers oblong. Aggregate fruit narrowly ovoid, 6--9 × 3.5--5 mm. Achene obliquely obovoid, 1.5--2 × 1.2--1.5 mm, puberulent; style persistent, ca. 0.8 mm.

* 2100--4300 m. SW Gansu, C and NE Qinghai, Shanxi, NW Sichuan.