藏西毛茛 zang xi mao gen

Ranunculus munroanus var. minor Tamura.

Herbs perennial. Roots fibrous, slightly thickened at base. Stems erect or ascending, 10--20 cm, puberulent above, simple or 1-branched. Basal leaves ca. 3; petiole 3--10 cm; blade 3-cleft slightly beyond middle, reniform, 0.7--2 × 1.5--3 cm, papery, glabrous, base cordate, central lobe broadly obovate or obovate, obtusely 3-dentate at apex or entire; lateral lobes obliquely flabellate, unequally 2-cleft, few dentate or entire. Lowermost stem leaf similar to basal ones, upper ones short petiolate or sessile, 3-lobed, or undivided, oblong. Flowers solitary, terminal, ca. 0.8 cm in diam. Receptacle glabrous. Sepals 5, elliptic, ca. 2 mm, glabrous. Petals 5, elliptic-obovate, ca. 4 × 1.5 mm, nectary pit without a scale, apex rounded. Stamens numerous; anthers oblong. Aggregate fruit ovoid, ca. 3 × 2.8 mm; carpels numerous. Achene subellipsoid, ca. 1.2 × 1 mm, glabrous; style persistent, ca. 0.4 mm. Fl. May--Jun.

Alpine regions; ca. 4200 m. W Xizang [Kashmir, Nepal, Pakistan].