Trees, 8-25 m tall; bark gray-brown. Branchlets purplish black when dried, at first slightly hairy. Petiole 1.5-4 cm, swollen at both ends, glabrous; leaf blade oblong or oblong-ovate, 7-15 × 3-6 cm, both surfaces glabrous, glossy, lateral veins 8-12 on each side of midrib, base cuneate, apex obtuse or acute. Inflorescence cymose-corymbose, to 10 cm, densely stellate puberulent. Pedicels ca. 7 mm. Calyx obovoid-campanulate, 8-9 mm, abaxially stellate puberulent, 3-5-lobed, lobes oblong ovate, ca. 1.5 mm. Petals 5, white, oblanceolate, ca. 20 × 4 mm, clawed, glabrous. Androgynophore 2-2.5 cm, glabrous. Ovary ovoid, densely hairy. Capsule oblong-pyriform, 4-4.5 × ca. 2.5 cm, 5-angular, sparsely pubescent. Seeds ca. 2.5 cm including wing. Fl. Mar-Apr.
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