定结毛茛 ding jie mao gen

Herbs perennial. Roots fibrous, subequally thick. Stems 1--2.5 cm, scapiform, puberulent, simple. Basal leaves ca. 5; petiole 1--1.5 cm, glabrous or sparsely puberulent; blade 3-sect, pentagonal, broadly rhombic, or orbicular-ovate, or orbicular-ovate in outline, rarely undivided and lanceolate-linear. 2--4 × 2--4 mm, papery, subglabrous or abaxially sparsely puberulent; central segment short stalked, rhombic, 3-lobed, or oblanceolate, undivided; lateral segments sessile, obliquely rhombic, unequally 3-lobed, or undivided; Stem leaves 1 or 2, on lower part of stem, similar to basal leaves. Flowers solitary, terminal, 0.6--1.2 cm in diam. Receptacle glabrous. Sepals 5, long elliptic, 2--3.5 mm, abaxially sparsely puberulent. Petals 5, obovate, broadly obovate, or long elliptic, 3--6 × 1.2--4.5 mm, nectary pit without a scale, apex rounded or truncate. Stamens numerous; anthers broadly oblong or ellipsoid. Carpels numerous; ovary longer than style, glabrous. Fl. Jun.

* Alpine meadows; 4500--4800 m. S Xizang (Dinggyê Xian).