红枝小檗 hong zhi xiao bo

Berberis erythroclada var. trulungensis Ahrendt.

Shrubs, deciduous, to 1.5 m tall. Branches shiny, dark red, glabrous, sulcate; internodes 8-25 mm; spines (3-)5-7(-9)-fid, orange, 5-10 mm. Leaves subsessile; leaf blade abaxially ultimately pale dark green, adaxially dark green, obovate or obovate-elliptic, 1-2.8 cm × 3-15 mm, papery, abaxially initially slightly grayish pruinose, midvein conspicuously raised, adaxially veins obviously branched or openly reticulate, base cuneate, margin 1-15-spinose-serrate on each side, apex rounded or obtuse. Flowers solitary. Pedicels 1.5-2.5 cm, very slender. Sepals in 2 whorls; outer sepals oblong-elliptic, 5.5-6.5 × 3-3.7 mm; inner sepals obovate, 7-8 × 4-4.5 mm, (sometimes outer and inner sepals equal). Petals obovate, 5-6.5 × 2.5-4.5 mm, base with separate narrowly oblong glands, apex subentire. Stamens 3-4 mm; anther connective slightly prolonged, subretuse. Ovules 6-9, often funiculate. Berry unknown. Fl. Jun-Jul, fr. unknown.

● Slopes; 4000-4300 m. Xizang.