Anemone umbrosa C. A. Mey.

Rhizome branched, prostrate or ascending, long, 1--1.5 mm in diam. Scalelike leaves 2 or 3. Leaf solitary; petiole 5--15 cm, puberulent or subglabrous; leaf blade ternate, pentagonal, 2--4 × 2--4 cm, appressed puberulent or glabrous; petiolules 1--2 mm; central leaflet 3-lobed, long ovate, base cordate to cuneate, margin serrulate, apex obtuse to acuminate; lateral leaflets unequally 2-lobed, ovate to orbicular, base narrowly cuneate, margin crenate to dentate. Scape 8--20(--30) cm, subglabrous or pilose; cyme 1-flowered. Involucral bract petiole 1--2(--3) cm × 1--2 mm, glabrous or pilose; bract blade ternate, similar to that of leaves, pentagonal to triangular, 2--4 × 3--5 cm, puberulent; segments subsessile, central one 3-lobed, rhombic, lateral ones unequally 2-lobed, obovate to elliptic. Pedicel 3.5--6 cm, puberulent or villous. Sepals 5, white, ovate to elliptic, 7--14 × 4--10 mm, sparsely puberulent, basal veins 5 or 6, vein anastomoses absent, rarely solitary, base narrowed, apex rounded or obtuse. Stamens 4--6 mm; filament filiform; anther cylindric to ellipsoid, connective narrow. Staminodes sometimes present, 2.5--4 mm. Ovary shortly stipitate, elongate, 1.7--2 mm, densely puberulent; style straight or slightly curved, conic; stigma thickened. Achene body ovoid, 2--4 × 1.5--2 mm, pilose, hairs ca. 0.2 mm; style straight or slightly curved, ca. 1 mm. Fl. May--Jun.

Heilongjiang, Jilin, Liaoning [N Korea, Russia (Far East)].

Grassy places in forests or on shady slopes; 200--500 m.

Anemone extremiorientalis (Starodubtzev) Starodubtzev; A. umbrosa subsp. extremiorientalis Starodubtzev; Anemonoides extremiorientalis (Starodubtzev) Starodubtzev; A. umbrosa (C. A. Meyer) Holub.

Anemone umbrosa là một loài thực vật có hoa trong họ Mao lương. Loài này được C.A.Mey. mô tả khoa học đầu tiên năm 1830.

阴地银莲花（学名：Anemone umbrosa）是毛茛科银莲花属的植物。分布于远东地区、朝鲜以及中国大陆的吉林、辽宁等地，生长于海拔200米至500米的地区，一般生于低山阴坡草地或林下阴处，目前尚未由人工引种栽培。