西南银莲花 xi nan yin lian hua

Anemone petiolulata C. Pei; A. stolonifera Maximowicz var. davidii (Franchet) Finet & Gagnepain; Anemonoides davidii (Franchet) Starodubtzev.

Rhizome prostrate, stolonlike, long, 1--2 mm in diam., also branched, erect, short, 6--15 mm in diam. Scalelike leaves 2 or 3, 8--10 × 10--15 mm. Leaves 2--5(--9); petiole 10--20(--35) cm, subglabrous or puberulent, base sheathing and surrounded by fibrous remnants; leaf blade ternate, cordate-pentagonal, 5--10 (--12) × 5--15 cm, sparsely puberulent; petiolules 3--7 mm; central leaflet 3-lobed, rhombic, base cuneate, margin lobulate or coarsely dentate, apex acuminate; lateral leaflets unequally 2-parted, smaller than central one, ultimate lobules obtuse. Scapes 1--3, 20--40(--60) cm, subglabrous; cyme 1--3-flowered. Involucral bracts 3--5; petiole 1.5--3 cm × 1--2 mm, puberulent; bract blade ternate, similar to that of leaves, 5--8 × 6--9 cm, sparsely puberulent; petiolules 2--5 mm; central segment 3-lobed; lateral segments 2-parted. Bracteoles 1 or 2, 2--3 cm, broadly lanceolate, 3-lobed or 3-dentate. Pedicel 5--15 cm, puberulent. Sepals 5(or 6), white, elliptic or obovate, 15--20(--30) × 10--20 mm, sparsely puberulent along central vein or subglabrous, basal veins 5--7, vein anastomoses 5--15, base and apex rounded. Stamens 4--8 mm; filament filiform; anther narrowly ellipsoid. Staminodes present between stamens and carpels, 2--3 × ca. 2 mm. Ovary ovoid, slightly compressed, 3--4 mm, laterally ribbed, pubescent; style straight, short; stigma subcapitate. Achene body ovoid, slightly compressed, 3--5 × 2--3 mm, narrowly ribbed, glabrous or puberulent; style curved, conic, ca. 1 mm; stigma subcapitate. Fl. May--Jun.

* Mixed forests, bamboo thickets, shady places by streams, rocks in valleys; 1000--3500 m. Guizhou, W Hubei, W Hunan, Sichuan, SE Xizang (Mêdog Xian), NW Yunnan.