乳突小檗 ru tu xiao bo

Berberis thunbergii Candolle var. papillifera Franchet, Pl. Delavay. 36. 1889; B. finetii C. K. Schneider.

Shrubs, deciduous, 1.5-2 m tall. Branches brownish gray, puberulous, sparsely verruculose; shoots pale yellow, pubescent; spines simple or 3-fid, weak, 5-12 mm, sometimes absent. Petiole 2-4 mm; leaf blade abaxially grayish white, adaxially deep green, narrowly oblong-obovate, 1-3 cm × 3-8 mm, papery, abaxially papillose, not pruinose, midvein slightly raised, adaxially with flat midvein, lateral veins 2 or 3 pairs, both surfaces with conspicuous reticulate veins, base attenuate, margin entire, apex acute or obtuse. Inflorescence an umbellate raceme, 3-9-flowered, 1.5-3 cm including peduncle 4-8 mm. Pedicels 6-12 mm, slender; bractlets yellow, lanceolate, ca. 3 mm, apex acuminate. Sepals in 2 whorls; outer sepals obovate, ca. 6 × 3 mm; inner sepals obovate, ca. 6 × 4 mm. Petals elliptic, ca. 4.5 × 2.5 mm, apex acute, incised, lobes acute. Stamens ca. 2.5 mm; anther connective not prolonged, truncate. Ovules 1 or 2, sessile. Berry red, oblong-elliptic, 8-8.5 × 4.5-5.5 mm, slightly pruinose, style persistent. Fl. Jun-Jul, fr. Oct-Nov.

● Thickets; 2900-3000 m. Sichuan, SE Xizang, Yunnan.