西藏山胡椒 xi zang shan hu jiao

Lindera gracilis H. P. Tsui.

Evergreen trees, 8-15 m tall, 8-20 cm d.b.h. Bark black-brown when dry, striate and lenticellate. Young branchlets green-brown, densely gray pannose, striate. Leaves alternate; leaf blade green and dark green when dry, narrowly obovate or oblong, 8-17 × 3-6 cm, papery, densely yellow-white pannose abaxially, glabrous adaxially, pinninerved, lateral veins 8-10 pairs, distinct on both surfaces, convex adaxially, base cuneate, apex acuminate. Umbels 4-7, inserted at axillary and yellow-white pannose short branch; peduncles 0.7-1 cm; involucral bracts 4, apex acuminate, 6-12-flowered inside, densely gray-white pannose on peduncles and involucral bracts. Flowers not matured; anthers dicoelous. Fruits subglobose, 4-5 mm in diam., purple-red at maturity; tepals persistent; stipes 6-10 mm; peduncles of infructescence 8-10 mm, glabrous.

● Broad-leaved forests on mountain slopes; 1500-2000 m. SE Xizang (Mêdog).