Trees to 30 m tall; branchlets stout, glabrous. Petiole 7–10 cm, glabrous; leaf blades broadly ovate-rounded, 10–13 × 7–10 cm, abaxially yellow-green or grayish, glabrous, adaxially drying olive-green, shiny, apex shortly acute, palmately 5-veined, veins raised. Inflorescences terminal or axillary, ca. 4 cm, densely many-flowered; peduncle glabrous. Sepals ca. 1.5 mm, apex subacute, abaxially pubescent; petals white, 8–10 mm. Styles 2–3 mm; stigmas decurrent papillose. Capsules yellow-brown, 1.5–2 cm. Seeds brown, shiny, 10–12 × 5–6 mm. Fl. Mar–Jun, fr. Jul–Sep.
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