川西银莲花 chuan xi yin lian hua

Anemonoides prattii (Huth ex Ulbrich) Holub; Arsenjevia prattii (Huth ex Ulbrich) Starodubtzev.

Rhizome oblique, short, 5--7 mm in diam., with above-ground, long, slender stolons, ca. 1 mm in diam. Leaves 2 or 3; petiole 5--15 cm, glabrous; leaf blade 3-sect, cordate-pentagonal, 3--3.5 × 5--5.5 cm, abaxially subglabrous, adaxially sparsely puberulent, base cordate; segments subsessile; central segment 3-lobed, rhombic, base cuneate, secondary lobes subpinnately divided, ultimate lobules broadly lanceolate, narrowly ovate, or ovate; lateral segments 2-parted, obliquely flabellate. Scape 10--30 cm, sparsely puberulent distally; cyme 1(or 2)-flowered. Involucral bracts 3, sessile; bract blade 3-lobed, unequally rhombic, puberulent. Pedicel 3.5--8 cm, puberulent. Sepals 5, white, elliptic-obovate or elliptic, 8--10 × 4--7 mm, sparsely puberulent, veins 3--5, vein anastomoses absent, apex rounded. Stamens 4--5 mm; filament filiform; anther ellipsoid, apex rounded. Ovary densely puberulent; style very short; stigma sessile, subglobose. Achenes not seen. Fl. Apr--May.

* Shady places in forests, valleys; 1700--2400 m. W Sichuan, N Yunnan.