Trees 8-15(-25) m tall. Current year branchlets stout, pubescent; terminal buds large, densely white sericeous. Petiole ca. 1 cm, pubescent or glabrescent; leaf blade oblong-elliptic to oblong, 10-15(-21) × 3-5.5(-7) cm, leathery, abaxially pale green, sparsely appressed pubescent or glabrescent, and becoming pale brown when dry, adaxially dark green, shiny, and glabrous, secondary veins obscure, base cuneate, margin basally entire and apically serrate, apex bluntly acute to shortly acuminate. Flowers solitary, 8-12 cm in diam. Pedicel 6-8 mm, stout, grayish yellow velutinous; bracteoles 5, caducous. Sepals broadly ovate, 1.5-2 cm, outside densely yellow velutinous, inside puberulent to subglabrous. Petals 5, white, broadly obovate, 5-6.5 cm, basally connate for 3-5 mm, apex emarginate. Stamens 2-2.5 cm; filaments basally pubescent and adnate to petals. Ovary ovoid, ca. 4 mm, white tomentose; style ca. 2 cm, white velutinous; stigma 5, capitate. Capsule oblong-cylindric, 4-5 × 1.8-2.5 cm, with ca. 5 seeds per locule. Seeds together with wing ca. 2 × 0.6 cm. Fl. Oct-Nov, fr. Sep-Oct.
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