藏紫枝柳 zang zi zhi liu

Shrubs to 3 m tall. One-year-old branchlets brown, glabrous; juvenile branchlets at first woolly tomentose, glabrescent. Buds brownish red, ellipsoid, glabrous. Stipules obliquely ovate-lanceolate, small, glandular dentate; petiole 5-8 mm; leaf blade elliptic or narrowly elliptic, 5-9 × 1.5-3.4 cm, glabrous or pilose at base of midvein, both ends attenuate, abaxially greenish, adaxially dull green, base cuneate, margin entire or indistinctly glandular dentate, apex acute; veins yellow, raised; lateral veins ca. 14 on each side of midvein. Flowering serotinous. Make catkin unknown. Immature fruiting catkin ca. 8 × 1 cm; peduncle ca. 3 cm, with 2-5 leaflets; bracts obovate-oblong, ca. as long as ovary, abaxially downy and ciliate, adaxially glabrous, apex acute. Female flower: gland adaxial, subovoid, apex truncate or retuse; ovary ovoid, pilose; stipe ca. as long as style; style conspicuous, cleft; stigma short, entire or divided. Capsule purplish red, ovoid, ca. 5 mm, apically attenuate. Fr. Aug.

* Woods on mountain slopes; 3300-3400 m. S Xizang