Clematis hexapetala

Herbs perennial, erect, 30-100 cm tall. Stems simple or branched; branches shallowly 8-12-grooved, sparsely pubescent, glabrescent. Leaves 1- or 2-pinnatisect; petiole 0.5-2 cm; ultimate lobe linear-lanceolate, elliptic, or linear, 1.5-10 × 0.1-2(-2.6) cm, leathery, both surfaces sparsely pubescent to subglabrous and reticulate, base cuneate, margin entire, apex acute to obtuse; basal veins prominent on both surfaces. Cymes terminal or axillary, (1-)3- to many flowered; peduncle 3.5--8.5 cm; bracts foliaceous or undivided, lanceolate. Flowers 2.5-4 cm in diam. Pedicel 1-7 cm, puberulous to subglabrous. Sepals (4 or)5 or 6(-8), white, spreading, narrowly obovate to narrowly oblong, 1-2.5 × 0.3-1 cm, abaxially velutinous or glabrous except for velutinous margin, adaxially glabrous, apex rounded to subtruncate. Stamens 6-9 mm, glabrous; anthers narrowly oblong, 2.6-3.2 mm, apex minutely apiculate. Ovaries pubescent. Style 5.5-8 mm, densely villous. Achenes obovate, 2.5-3.5 × 2-3 mm, pubescent; persistent style 1.5-3 cm, plumose. Fl. Jun-Aug, fr. Jul-Oct.

 

Slopes, grassy areas, dunes; 100-1300 m. E Gansu, Hebei, Heilongjiang, W Henan, N Hubei, N Jiangsu, Jilin, Liaoning, Nei Mongol, Ningxia, Shaanxi, E Shandong, Shanxi [Korea, Mongolia, Russia (E Siberia)].