扁果毛茛 bian guo mao gen

Herbs perennial. Roots fibrous and tuberous. Stems 13--22 cm, puberulent, simple or 1- or 2-branched above. Basal leaves 4--6; petiole 2--4 cm, puberulent; blade pinnate, broadly ovate or rhombic in outline, 1.5--5 × 0.8--3.8 cm, papery, sparsely puberulent; pinnae 3 pairs, lower ones petiolulate, 1--3 × dissected, ultimate lobes narrowly lanceolate or linear. Stem leaves 1 or 2, shortly petiolate or sessile, 3-sect, lobes linear, entire. Flowers terminal, solitary, 1.6--2.5 cm in diam. Receptacle glabrous. Sepals 5, ovate, 5--7 mm, abaxially pubescent. Petals 5, obovate, 8--15 × 6--10 mm, nectary pit covered by a scale, apex rounded. Stamens numerous; anthers narrowly oblong. Carpels numerous, ca. 1.2 mm, glabrous; style persistent, ca. 0.5 mm, hooked. Fl. Apr--May.

Meadows, river banks; 700--1100 m. NW Xinjiang [Kazakhstan].