西伯利亚小檗 xi bo li ya xiao bo

Berberis borealisinensis Nakai.

Shrubs, deciduous, to 1 m tall. Branches dark gray, glabrous; shoots reddish brown, puberulous, sulcate; spines 3-9-fid, 3-11 mm, slender, spreading at base to 2 mm wide, or partly leaflike. Petiole 3-5 mm; leaf blade abaxially pale yellow-green, adaxially deep green, obovate, oblanceolate, or obovate-oblong, 1-2.5 cm × 5-8 mm, papery, abaxially not pruinose, both surfaces with conspicuous raised veins, lateral veins 4 or 5 pairs, base cuneate, margin sometimes repand, coarsely 4-7-aristate-dentate on each side, apex rounded, obtuse, or aristate. Flowers solitary. Pedicels 7-12 mm, glabrous. Sepals in 2 whorls; outer sepals oblong-ovate, ca. 4 × 2 mm; inner sepals obovate, ca. 4.5 × 2.5 mm. Petals obovate, ca. 4.5 × 2.5 mm, base with separate glands, apex shortly emarginate. Stamens 2.5-3 mm; anther connective truncate. Ovules 5-8. Berry red, obovoid, 7-9 × 6-7 mm, not pruinose, style not persistent. Fl. May-Jul, fr. Aug-Sep.

Alpine slopes, talus slopes, desert regions, forests; 1400-3000 m. Hebei, Nei Mongol, Shanxi, Xinjiang, NE China [Mongolia, Russia (Siberia)].