细柄十大功劳 xi bing shi da gong lao

Berberis gracilipes Oliver, Hooker’s Icon. Pl. 18: t. 1754. 1887; B. subtriplinervis Franchet; Mahonia gracilipes var. rhombica Z. F. Pan & Z. P. Song; M. subtriplinervis (Franchet) Fedde.

Shrubs, 0.3-1 m tall. Leaves adaxially dark green, elliptic to narrowly elliptic, 20-41 × 7-11 cm; leaflets 2 or 3 pairs, subsessile, lowest pair 3.5-10 cm above base of petiole, abaxially white pruinose, venation reticulate, raised on both surfaces; rachis stout, 2-3 mm in diam.; internodes 5-7 cm; petiolule 2-5.5 cm; lowest leaflets oblong, 6-11 × 2-5 cm, only slightly smaller than others, apically becoming oblong to oblanceolate, 8-14.5 × 3-7.3 cm, base cuneate, margin entire below middle, 1-5-spinose-serrate on each side; terminal leaflet 8-14.5 × 3-7.3 cm. Inflorescence 3-5 simple or branched fascicles of racemes, loosely flowered, (6-)25-35 cm; bracts of inflorescence lanceolate, 2-2.5 cm × 4-7 mm. Pedicel 1.3-2.4 cm, slender; floral bracts 1-2 mm. Sepals purple; outer sepals ovate, 2.2-3 × 1.5-2 mm, apically acute; median sepals elliptic, 4.5-5 × 2.1-2.8 mm, apically acute; inner sepals elliptic, 5-5.5 × 2.2-3.2 mm. Petals yellow, oblong, 4-5 × 2-2.6 mm, base with distinct glands, apex emarginate with acute lobes. Stamens 2-3 mm; anther connective not prolonged, truncate. Ovary ca. 2 mm; ovules 3 or 4; style short. Berry black, pruinose, globose, 5-8 mm in diam. Fl. Apr-Aug, fr. Sep-Nov.

● Broad-leaved evergreen and mixed broad-leaved evergreen and deciduous forests, forest margins, shaded slopes; 700-2400 m. Sichuan, NE Yunnan.