甘肃小檗 gan su xiao bo

Shrubs, deciduous, to 3 m tall. Branches pale brown; shoots reddish, angulate; spines weak, simple or 3-fid, concolorous, 1-2.4 cm, adaxially sulcate. Petiole 1-2 cm; leaf blade abaxially gray, adaxially dark green, suborbicular or broadly elliptic, 2.5-5 × 2-3 cm, papery, abaxially slightly pruinose, midvein obviously raised, adaxially with slightly impressed midvein, both surfaces with raised lateral and reticulate veins, base attenuate to decurrent petiole, margin 15-30-spinose-serrate on each side, apex rounded. Inflorescence a raceme, 10-30-flowered, 2.5-7 cm including peduncle 0.5-3 cm; bracts 1-1.5 mm. Pedicels 4-8 mm, often verticillate; bractlets reddish, ca. 1.4 mm, apex acuminate. Sepals in 2 whorls; outer sepals ovate, ca. 2.5 × 1.5 mm, apex acute; inner sepals oblong-elliptic, ca. 4.5 × 2.5 mm. Petals oblong-elliptic, ca. 4.5 × 2 mm, base shortly clawed, with separate obovate glands, apex emarginate, lobes acute. Stamens ca. 3 mm; anther connective slightly prolonged, rounded or truncate. Ovules 2, funiculate. Berry red, oblong-obovoid, 7-8 × 5-6 mm, not pruinose, style not persistent. Fl. May-Jun, fr. Jul-Aug.

● Thickets, mixed forests; 1400-2800 m. Gansu, Ningxia, Qinghai, Shaanxi, Sichuan.