Trees 12-18 m tall, evergreen. Young branches glabrous; current year branchlets pubescent. Petiole 1.2-2.5 cm, pubescent, wings 2-3 mm wide; leaf blade long ovate, 5-8 × 3-4.5 cm, thickly leathery, abaxially yellowish green and sparsely appressed pubescent or glabrescent, adaxially dark green and glabrous, midvein abaxially elevated and adaxially impressed, secondary veins 10-12 on each side of midvein and raised on both surfaces, base rounded to cordate, margin sparsely serrate, apex abruptly acute to acuminate. Flowers solitary. Pedicel 4-6 mm, pubescent; bracteoles lanceolate, 4-7 × 2-3 mm, pubescent. Sepals long ovate, 9-12 × 5-7 mm, outside pubescent, inside basally puberulent, apex rounded. Petals white, elliptic, 1.2-1.5 × 0.8-1 cm. Stamens 8-10 mm. Ovary conic, glabrous. Capsule conic, ca. 1 × 1.4 cm, 5-loculed with 5 or 6 seeds per locule. Seeds broadly ovate, narrowly winged. Fl. Jun-Jul, fr. Sep-Oct.
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