蒴果矩圆状梨形，顶端截形，长3厘米，宽约2.8厘米，5室， 有5棱脊，密被淡黄色星状短柔毛，每室有种子2个；种子连翅长约2厘米，翅膜质，矩圆形，褐色，长约1.5厘米，顶端钝。   果熟期12月。  Trees, to 10 m tall. Branchlets robust, gray, nearly glabrous. Petiole 1.5-3 cm, glabrous; leaf blade oblanceolate, 7-20 × 2-6 cm, leathery, both surfaces glabrous, lateral veins 7-9 on each side of midrib, slightly prominent abaxially, base cuneate, apex obtuse or rounded. Flowers not seen. Capsule oblong pyriform, 5-grooved (angular), ca. 3 × 2.8 cm, densely pale yellow stellate puberulent, apex truncate. Seeds 2-3.5 cm including wing, wing brown, oblong, ca. 2 cm, apex obtuse. Fr. Dec.