Description from Flora of China
Trees, up to 30 m tall, ca. 45 cm d.b.h. Branchlets gray-brown, glabrous, lenticellate, lenticels black-brown; young branchlets yellow-brown pubescent. Terminal buds small, ovoid, ca. 2 mm, densely yellow-brown pubescent outside. Leaves alternate or subopposite at upper part of young branchlets; petiole 1-2 cm, yellow-brown pubescent when young but glabrous when old; leaf blade abaxially greenish, adaxially green and shiny, elliptic or narrowly elliptic, 7-13 × 3-5 cm, subleathery, abaxially somewhat pubescent or subglabrous, adaxially glabrous, midrib adaxially slightly elevated or plane, lateral veins 7-10 pairs, elevated on both surfaces, reticulate veinlets conspicuous on both surfaces, base cuneate, margin slightly revolute, apex shortly acuminate with an obtuse acumen, rarely obtuse. Cymes short, 1.2-1.5 cm, 1-4-flowered; peduncles 2-5 mm, together with rachises yellow-brown pubescent. Pedicels yellow-brown pubescent. Perianth segments subequal, oblong, ca. 3.5 × 1.5 mm, yellow-brown pubescent. Fertile stamens 9; filaments hairy, those of 3rd whorl each with 2 stalkless orbicular-reniform glands at base. Staminodes sagittate-triangular. Ovary subglobose, ca. 1 mm, glabrous; style ca. 1.5 mm. Fruits green, becoming black when mature, ellipsoid, ca. 3 × 1.3 cm, glabrous, densely and conspicuously verruculose, base attenuate, apex obtuse; fruiting pedicels ca. 5 × 2-4 mm, slightly yellow-brown pubescent. Fl. Mar-Apr, fr. Apr-Jul.
● Humid places in thickets or sparse forests; 600-2100 m. S Yunnan (Menglun).