Trees, up to 30 m tall, to 40 cm d.b.h. Branchlets red-brown, robust, terete, ± angled, striate, densely lenticellate, glabrous; young ones slightly compressed, densely yellowish brown puberulent. Petiole 1-1.5 cm, concave-convex, densely yellowish brown puberulent; leaf blade whitish purple-green abaxially, yellow-green and shiny adaxially, oblong or oblong-elliptic, 8-26 × 2.5-7.5 cm, thinly leathery, puberulent along midrib only initially, soon glabrate on whole surface adaxially, midrib and lateral veins elevated abaxially, impressed adaxially, lateral veins 6-9 pairs, ascendant, evanescent within leaf margin, transverse veins ± conspicuous on both surfaces, veinlets reticulate. Panicle axillary, short, 2-2.5(-4) cm, densely yellowish brown puberulent, few flowered, few branched; lowest branches, 0.8-1.5 cm; peduncle 1-1.5 cm; bracts and bracteoles ovate-subulate, small. Pedicels 1-2 mm, densely yellowish brown puberulent. Flowers greenish, ca. 4 mm. Perianth yellowish brown puberulent outside; perianth tube turbinate, ca. 2 mm; perianth lobes obovate, ca. 2 mm, acute. Fertile stamens 9, ca. 1.5 mm in 1st and 2nd whorls, ca. 1.4 mm in 3rd whorl; filaments almost as long as anthers, those of 3rd whorl each with 2 stalked reniform glands, others glandless; anthers of 1st and 2nd whorl subcordate, with introrse cells, those of 3rd whorl ovoid, with extrorse cells. Staminodes narrowly sagittate-triangular, ca. 1 mm, stalked. Ovary clavate, ca. 2.5 mm; style slender, ca. 1 mm; stigma capitate. Fruit shiny, ovoid, 1.5-1.8 × 1.1-1.3 cm, glabrous, inconspicuously angled. Fl. Apr-May, fr. Jun-Nov.

● Evergreen broad-leaved forests in valleys; 1000-1800 m. S Yunnan.