150. Berberis tomentulosa Ahrendt, J. Bot. 80(Suppl.): 112. 1942.
微毛小檗 wei mao xiao bo
Shrubs, deciduous, 0.5-1 m tall. Branches dark gray, obviously angulate, not verruculose, puberulous; shoots pale yellow, sulcate, puberulous; spines 3-fid, but simple on shoots, weak, pale yellow, 3-10 mm. Leaves subsessile; leaf blade abaxially pale yellow-green, adaxially shiny, deep green, obovate, 5-14 × 2-5.5 mm, papery, abaxially not pruinose, midvein obviously raised, lateral veins 2 or 3 pairs, slightly raised, reticulate veins conspicuous, adaxially with flat or slightly impressed midvein, reticulate veins conspicuous, base cuneate, margin 5-8-spinose-serrate on each side, but mostly entire on shoots, apex rounded. Inflorescence a subumbellate raceme, 5-10-flowered, 1.5-2 cm including peduncle ca. 5 mm; bracts ovate, 1-1.5 mm, apex acuminate. Pedicels 2-4 mm, slightly puberulous, becoming subglabrous; bractlets oblong, ca. 2 × 1 mm. Flowers pale yellow, 5-6 mm in diam. Sepals in 2 whorls; outer sepals broadly oblong, ca. 2.5 × 1.5 mm; inner sepals obovate-oblong, ca. 4 × 2.1 mm. Petals obovate, ca. 3 × 1.5 mm, base clawed, with separate glands, apex emarginate. Stamens ca. 2 mm; anther connective slightly prolonged, rounded, obtuse. Ovules 2. Fruit unknown. Fl. May, fr. unknown.
● Mountain slopes, rocky slopes; ca. 2500 m. Yunnan.