贡山木姜子 gong shan mu jiang zi

Evergreen shrubs or small trees, 2.5-6 m tall. Branchlets puberulent or subglabrous. Leaves alternate; petiole 5-8 mm, puberulent, soon becoming glabrous; leaf blade lanceolate, oblanceolate, or oblong, 5-14.5 × 1.4-4 cm, glaucous and glabrous except for sparsely puberulent midrib abaxially, glabrous adaxially, pinninerved, lateral veins 8-10 pairs, transverse veinlets conspicuous abaxially, base cuneate, apex shortly acuminate. Umbels solitary or in cluster of 2 or 3, axillary, male umbel 3- or 4-flowered; peduncle 5-10 mm, sparsely puberulent. Male flowers: pedicel 1.5-2 mm, sericeous-pubescent; perianth segments 6, ovate; fertile stamens 9; filaments sericeous-pubescent, of 3rd whorls each with 2 long stipitate rounded glands at base; rudimentary pistil clavate, glabrous. Fruit ellipsoid, ca. 15 × 8 mm, seated on discoid perianth tube; fruiting pedicel 4-5 mm, thickened at apex. Fl. Nov, fr. Jun-Jul of next year.

● Sparse forests on mountain slopes, broad-leaved forests on riverbanks; 1300-1400 m. Xizang, NW Yunnan.