Trees, ca. 8 m tall, ca. 30 cm d.b.h. One-year-old branchlets black-brown or brown, terete, up to 5 mm in diam., glabrous, densely lenticellate, lenticels broadly oblong and corky; current year branchlets red-brown, slender, ± compressed, sparsely rusty-or yellowish brown puberulent. Terminal buds small, ovoid, ca. 2 mm; bud scales densely yellowish brown pubescent. Leaves alternate; petiole 1-1.5 cm, concave-convex, sparsely yellowish brown puberulent when young but glabrate when mature; leaf blade brownish and slightly glaucous abaxially and red-brown adaxially when dry, ovate-elliptic to elliptic, 6.5-10.5 × 2.5-5.5 cm, subleathery, sparsely yellowish brown puberulent on both surfaces when young, glabrate on both surfaces when mature, midrib and lateral veins conspicuously elevated on both surfaces, lateral veins ca. 5 pairs, arcuately connected at ends, basal lateral veins close to leaf base, veins and veinlets reticulate and slightly foveolate on both surfaces, base broadly cuneate, margin slightly revolute and undulate, apex acute, acumen obtuse. Panicle axillary on current year branchlet, 2-3.5 cm, few flowered; peduncle 1-1.5 cm, peduncle and rachis sparsely yellowish brown puberulent; bracteoles subulate, less than 1 mm, yellowish brown puberulent. Pedicels 1.5-3 mm, sparsely yellowish brown puberulent. Flowers yellow, small, ca. 1.5 mm, up to 2 mm in diam. Perianth lobes broadly ovate, acute, sparsely puberulent outside. Mature fruit brown, globose, up to 5.5 cm in diam., slightly contracted at base, apex rounded, glabrous; fruit stalk black-brown, robust, ca. 1.5 cm × 5-7 mm (broadest at apex), with corky elliptic lenticels. Fl. Jun.