Ranunculus altaicus E. G. Laxmann var. fraternus (Schrenk) Trautvetter.

Herbs perennial. Roots fibrous, subequally thick. Stems 6--18 cm, glabrous below, appressed puberulent above, simple or 1-branched. Basal leaves 2 or 3; petiole 1.5--7 cm, sparsely puberulent or subglabrous; blade suborbicular or orbicular-ovate, 0.8--2.5 × 1--3 cm, thinly leathery, glabrous, base subcordate or rounded, margin with 5--7 rounded teeth on each side, ciliate, apex obtuse. Stem leaves 1 or 2, short petiolate or sessile, palmatipartite or palmatisect, segments oblong-lanceolate or linear. Flowers solitary, terminal, 1.5--2.8 cm in diam. Receptacle glabrous. Sepals 5, elliptic-ovate, 6--8 mm, abaxially appressed brown-puberulent. Petals 5 or 6, broadly obovate or cuneate, 7--14 × 7--10 mm, apex rounded or truncate-rounded. Stamens numerous; anthers oblong. Carpels numerous; ovary longer than style, glabrous. Fl. May--Jun.

Alpine meadows; 2100--2600 m. W Xinjiang (Zhaosu Xian) [Kazakhstan].