小苞毛茛 xiao bao mao gen

Ranunculus involucratus Maximowicz var. minor L. Liou in W. T. Wang, Fl. Reipubl. Popularis Sin. 28: 361. 1980.

Herbs perennial. Roots fibrous, subequally thick. Stems 1.5--4.2 cm, densely puberulent above, simple. Basal leaves 1 or 2; petiole 1--3 cm, glabrous; blade 3-cleft to or slightly beyond middle, pentagonal, 4--5 × 3--8 mm, leathery, puberulent on both surfaces or only adaxially, base cordate or subcordate, central lobe rhombic, entire, 3-dentate, or 3-lobulate; lateral lobes obliquely flabellate, unequally 2-lobed or 2-cleft. Stem leaves 2 or 3, smaller, short petiolate, 3-cleft or uppermost leaf undivided. Flowers solitary, terminal, ca. 1 cm in diam. Receptacle glabrous. Sepals 5, ovate, 3--4 mm, subglabrous. Petals 5, cuneate, ca. 5 × 2 mm, nectary pit without a scale, apex rounded-truncate. Stamens numerous; anthers oblong. Carpels numerous; ovary ca. 3 × longer than style, ca. 0.9 mm, glabrous. Fl. May--Jun.

* Shady slopes; ca. 5400 m. S Xizang (Dinggyê Xian).