169. Berberis farreri Ahrendt, J. Linn. Soc., Bot. 57: 192. 1961.
陇西小檗 long xi xiao bo
Shrubs, deciduous, 1-3 m tall. Branches dark gray, angulate, not verruculose; shoots pale purplish red, glabrous; internodes 2-3 cm; spines absent, sometimes spines simple or 3-fid, concolorous, 3-25 mm, adaxially sulcate. Petiole 3-15 mm; leaf blade abaxially green, adaxially dark green, elliptic-obovate, 1.3-4.5 × 0.3-1.5 cm, papery, abaxially not pruinose, midvein and lateral veins obviously raised, adaxially with slightly impressed or flat midvein, lateral veins slightly raised, both surfaces with conspicuous reticulate veins, base abruptly contracted to decurrent petiole, margin 10-20-spinose-serrate on each side, but entire on shoots, apex obtuse. Inflorescence a raceme, 15-20-flowered, 3-4 cm. Pedicels 5-11 mm, slender, glabrous. Flowers ca. 8 mm in diam. Sepals in 2 whorls; outer sepals broadly obovate, ca. 3 × 2.5 mm, apex rounded; inner sepals narrowly obovate, ca. 5.3 × 2.3 mm, apex rounded. Petals narrowly obovate, ca. 4 × 1.8 mm, base clawed, with separate oblong glands, apex obtuse, subentire. Stamens ca. 2.5 mm; anther connective not prolonged, obtuse. Ovules 2. Berry red, ellipsoid, ca. 9 × 6 mm, not pruinose; style persistent, short. Fl. May-Jun, fr. Jul-Sep.
● Mountain slopes, thickets; 1600-3100 m. Gansu.