Shrubs, evergreen, 1-2.5 m tall. Branches dark gray, angulate, not verruculose; shoots brownish yellow, obviously sulcate, glabrous; spines concolorous, terete, 1-3 cm. Petiole 2-4 mm; leaf blade abaxially yellow-green, adaxially shiny, dark green, elliptic or broadly elliptic, occasionally ovate, 4-8 × 1.5-3 cm, thinly leathery, abaxially pruinose or occasionally slightly so, midvein conspicuously raised, lateral veins slightly raised, adaxially with obviously impressed midvein, lateral veins slightly conspicuous, both surfaces with indistinct reticulate veins, base attenuate, margin 12-25-spinose-serrate on each side, apex acute, mucronate. Flowers 2-6-fascicled. Pedicels reddish, 7-13 mm; bractlets lanceolate, 4-5 × 1.5-2 mm. Sepals in 2 whorls; outer sepals lanceolate, 5-9 × 2-3.5 mm; inner sepals obovate-oblong, 8-10 × 4-5 mm, apex obtuse. Petals obovate, ca. 5 × 2.2-3 mm, base clawed, with separate glands, apex emarginate. Stamens 3-4 mm; anther connective prolonged, truncate. Ovules 3, shortly funiculate. Berry black, ellipsoid, not pruinose; style persistent, short. Fl. Apr-May, fr. Jun-Oct.
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