Description from Flora of China
Trees, 10-25 m tall. One-year-old branchlets red-brown, terete, ca. 3.5 mm in diam., striate, densely corky-lenticellate, glabrous; current year branchlets ± compressed, glabrous. Ter- minal buds small, ovoid, ca. 1.5 mm; bud scales tightly clasped, densely rusty pubescent outside. Leaves alternate; petiole red-brown, 1-1.7 cm, plano-convex, glabrous; leaf blade yellowish brown abaxially when dry, yellow-brown adaxially, ovate-elliptic, 6.5-11.5 × 2.7-6.3 cm, leathery, glabrous on both surfaces, midrib and lateral veins conspicuously elevated abaxially, plane adaxially, lateral veins 3-5 pairs, basal lateral veins very close to leaf margin, transverse veins conspicuous abaxially, obscure adaxially, veinlets obscurely visible abaxially, base broadly cuneate, ± unequal on sides, margin revolute but not undulate, apex shortly acuminate, always obtuse and emarginate. Panicle axillary, 2-4 cm, few flowered; peduncle 0.5-2.2 cm, peduncle and rachis red-brown and glabrous. Pedicels slender, 2-5 mm, glabrous. Flowers small, ca. 1.5 mm. Perianth glabrous outside, yellowish brown puberulent inside; perianth tube obconical, ca. 1 mm; perianth lobes 4(or 5), broadly triangular, ca. 0.5 mm, obtuse. Fertile stamens 4, less than 1 mm; filaments pubescent, outer 2 each with 2 orbicular-reniform glands at base; anthers 2-celled; cells introrse. Staminodes 4, yellow-brown, filiform, densely villous. Ovary ovoid; style attenuate; stigma small, inconspicuous. Fruit green when immature but red-brown when dry, globose, ca. 3.5 cm in diam., smooth, glabrous, apex rounded. Fl. and fr. Sep-Oct.
● Dense humid forests; 1500-1800 m. SE Yunnan (Pingbian).