Trees 7-25 m tall. Young branches purplish brown with white lenticels; current year branchlets gray pubescent, soon glabrescent; terminal buds gray sericeous. Petiole 1.5-2.5 cm, sparsely pubescent or glabrescent; leaf blade oblong-elliptic to obovate-elliptic, 10-18 × 3-6(-8) cm, leathery, abaxially glaucous and sparsely prostrate pilose or glabrescent, adaxially dark green, shiny, and glabrous, secondary veins 12-14 on each side of midvein and visible to slightly raised on both surfaces, base broadly cuneate, margin entire, apex bluntly acute to acuminate. Flowers solitary or in a corymbose raceme of 3-5. Pedicel 1.5-2.5 cm, stout, erect, sparsely pubescent, white lenticellate, apically thickened; bracteoles 2, caducous, elliptic, 6-7.5 × 4-5.5 mm, pubescent. Sepals persistent, suborbicular, 4.5-5.5 × 5-6 mm, both surfaces yellowish velutinous. Petals white, obovate, 2-2.5 × ca. 1.5 cm, basally puberulent. Stamens ca. 1.5 cm, glabrous, basally adnate with petals. Ovary tomentose, 5-loculed; style ca. 1.5 cm, glabrous; stigma 5, capitate. Capsule compressed globose, 1.5-2 cm in diam.; pericarp woody, splitting into 5 valves. Seeds together with wing ca. 9 × 6 mm. Fl. Jul, fr. Oct-Nov.
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