单花小檗 dan hua xiao bo

Berberis hookeri Lemaire var. candidula C. K. Schneider, Ill. Handb. Laubholzk. 1: 303. 1904.

Shrubs, evergreen, ca. 1 m tall. Stems gray-brown, verruculose; young shoots pale green; spines 3-fid, subterete, 1-1.5 cm. Petiole very short or leaf subsessile; leaf blade adaxially very shiny, deep green, elliptic to ovate, 1-2 × 0.5-1 cm, thickly leathery, abaxially white pruinose, both surfaces inconspicuously reticulate veined, base cuneate, margin conspicuously revolute, 1-4-spinose-serrate on each side, apex acuminate. Flowers solitary. Pedicels 4-10 mm, glabrous. Sepals in 3 whorls; outer sepals yellowish red, oblong-ovate, ca. 4 × 2 mm, apex acute; median sepals oblong-obovate, ca. 7 × 5 mm; inner sepals obovate, ca. 10 × 8 mm. Petals obovate, ca. 8 × 6 mm, base cuneate, glands ovate, apex entire. Stamens ca. 5 mm; anther connective prolonged, truncate. Ovules 3 or 4. Berry ellipsoid, 8-9 × 4-5 mm, thinly pruinose, style not persistent. Fl. Apr-May, fr. Jun-Sep.

● Montane roadsides, thickets; 1200-3000 m. Hubei, Sichuan.