Trees, to 12 m tall. Branchlets puberulent, glabrescent. Petiole 1-2.5 cm, glabrous; leaf blade lanceolate or oblong-lanceolate, 8-12 × 1.5-2.5 cm, both surfaces glabrous, lateral veins 6-7 on each side of midrib, not prominent, base cuneate, apex long acuminate. Inflorescence cymose, up to 7 cm, many-flowered, stellate puberulent. Pedicel 6-8 mm. Calyx obconical campanulate, 5-6 × ca. 4 mm, abaxially sparsely stellate puberulent, 4-5-lobed, lobes oblong, ca. 1 mm, apex acute. Androgynophore ca. 2.5 cm. Ovary glabrous. Fruiting stipe 2-2.5 cm; capsule ellipsoid-pyriform, shallowly 5-lobed and longitudinally grooved, 3.5-4 × 2.4-2.8 cm, gray scaled. Seeds ca. 2.6 cm including wing, wing oblong, ca. 2 cm.

● Dense montane forests. Hainan (Qiongzhong, Wuzhi Shan).