扇叶毛茛 shan ye mao gen

Herbs perennial. Roots fibrous, thickened above. Stems 15--25 cm, spreading pubescent, simple or 1- or 2-branched above. Basal leaves ca. 2; petiole 3--8.5 cm, sparsely puberulent or subglabrous; blade 3-lobed or rarely 3-partite, oblate-ovate or flabellate, 1.2--2.6 × 1.6--3.8 cm, papery, glabrous or abaxially sparsely puberulent, base truncate-cuneate, truncate, or cordate, central lobe entire, lateral lobes 2- or 3-dentate; teeth ovate or orbicular-ovate, apex acute, or subtruncate and apiculate. Stem leaves 3 or 4, short petiolate or sessile, 3-sect, segments linear, undivided or unequally 2-partite. Flowers terminal, solitary or 2 in a monochasium, 1--1.2 cm in diam. Pedicel 1--4.5 cm, sparsely puberulent. Receptacle subglabrous. Sepals 5, elliptic-ovate, 3--3.5 mm, abaxially sparsely puberulent. Petals 5, obovate, 5--7 × 3--4 mm, nectariferous foveola small, apex rounded. Stamens numerous; anthers oblong. Aggregate fruit ellipsoid, ca. 5 × 3 mm; carpels numerous. Achene slightly bilaterally compressed, broadly ellipsoid, ca. 1.8 × 1.2 mm, densely puberulent; style persistent, ca. 1 mm. Fl. May--Jul. 2n = 32*.

* 2500--4400 m. SW Sichuan, N Yunnan.