巴塘小檗 ba tang xiao bo

Shrubs, deciduous, 0.5-1.5 m tall. Branches dark gray, terete; shoots dark purplish, sulcate, glabrous; spines 3-fid, concolorous, 1-1.5 cm. Leaves subsessile; leaf blade abaxially gray, adaxially pale green, obovate or narrowly obovate, 0.4-2 cm × 2-7 mm, papery, abaxially glabrous, not pruinose, midvein obviously raised, adaxially with slightly raised midvein, both surfaces with conspicuously raised reticulate veins, base cuneate, margin thickened, entire, apex rounded or retuse. Inflorescence a raceme, 5-10-flowered, 1-1.5 cm, often with few fascicled flowers at base. Pedicels ca. 3 mm, glabrous, sometimes slightly pruinose; bractlets ovate, ca. 1 mm, apex acuminate. Sepals in 3 whorls; outer sepals ovate, 1.2-1.5 × ca. 1 mm; median sepals ovate-orbicular, ca. 3 × 2 mm; inner sepals elliptic, 4-4.2 × 3-3.2 mm. Petals obovate, 2.8-3.1 × 1.8-2 mm, base clawed, with approximate glands, apex emarginate, lobes acute. Stamens ca. 1.2 mm; anther connective not prolonged, truncate. Ovules 4. Fruit unknown. Fl. Jun-Jul, fr. unknown.

● Thickets, field margins; 2600-3000 m. Sichuan.