低毛茛 di mao gen

Herbs perennial. Roots fibrous, 2 or 3, subequally thick. Stems 1.5--2 mm, glabrous or puberulent below flower, simple. Basal leaves 3 or 4; petiole 1--2.2 cm, glabrous; blade ovate, orbicular-ovate, or elliptic, 2.5--5 × 2--3 mm, leathery, glabrous, base rounded, truncate, or broadly cuneate, margin entire, apex obtuse or subacute. Stem leaves 2, lower 1 similar to basal leaves, upper short petiolate, oblong. Flowers solitary, terminal, 0.9--1.3 cm in diam. Receptacle glabrous. Sepals 5, obovate or suboblong, 3.5--4 mm, glabrous. Petals 5, obovate, 5.5--7 × 3.5--4 mm, nectary pit without a scale, apex rounded-truncate, often emarginate. Stamens 17--20; anthers oblong. Carpels 14--20; ovary ca. 2 × longer than style, ca. 1.4 mm, glabrous. Fl. Jun.

* River banks; ca. 5000 m. NE Xizang (Amdo Xian).