61. Berberis davidii Ahrendt, J. Linn. Soc., Bot. 57: 56. 1961.
密叶小檗 mi ye xiao bo
Berberis densa C. K. Schneider, Repert. Spec. Nov. Regni Veg. 46: 254. 1939, not Planchon & Linden (1862); B. wallichiana Candolle f. parvifolia Franchet.
Shrubs, evergreen, ca. 1 m tall. Branches brownish gray, sulcate, black verruculose; shoots brownish yellow, glabrous; spines 3-fid, concolorous, ca. 2 cm, slender, adaxially sulcate. Petiole 2-5 mm; leaf blade abaxially yellowish green, adaxially dark green, elliptic or elliptic-lanceolate, 2-4.5 × 1-1.5 cm, leathery, abaxially not pruinose, midvein obviously raised, lateral veins 4-6 pairs, reticulate veins inconspicuous, base cuneate, apex obtuse, aristate. Flowers 6-8-fascicled. Pedicels weak, to 3 cm, glabrous. Sepals in 3 whorls; outer sepals suborbicular, ca. 2 × 2 mm; median sepals suborbicular, ca. 4 × 4 mm; inner sepals oblong-elliptic, ca. 6 × 3 mm. Petals obovate-elliptic, ca. 5.5 × 3.2 mm, base attenuate, with separate glands, apex rounded, entire. Stamens ca. 4 mm; anther connective prolonged, truncate. Ovules 2. Berry ellipsoid, 8-9 × ca. 7 mm, gray pruinose, style not persistent. Fl. May-Jun, fr. Jul-Sep.
● Grassy slopes, grasslands, riversides; 2000-3500 m. Yunnan.