Trees, 7-15 m tall. Young branches grayish brown; current year branchlets purplish brown, thick, glabrous. Petiole 1-1.5 cm, glabrous, adaxially grooved; leaf blade elliptic to oblong-elliptic, 9-15 × 4-7(-9) cm, rigidly leathery, abaxially pale green and becoming pale brown when dry, adaxially dark green, both surfaces glabrous, midvein yellow, thick, abaxially elevated, and adaxially level or slightly raised, secondary veins 6-9 on each side of midvein, abaxially raised, and adaxially slightly raised, base broadly cuneate to obtuse, margin entire on basal 1/2 and serrate on apical 1/2, apex shortly caudate to caudate and with an obtuse tip. Flowers axillary or subterminal, solitary or paired, 6-8 cm in diam., subsessile. Bracteoles and sepals 9-11 or more; outer 3-5 bracteoles and sepals ± persistent, lunate to semiorbicular, 3-6 mm; inner bracteoles and sepals orbicular to broadly obovate, 1.5-2 cm, thickly leathery, glabrous or grayish white velutinous but glabrescent, margin membranous and ciliolate. Petals 6-8, rose or rarely white, broadly obovate, 4-6 × 3.5-4 cm, apex emarginate; outer 2 or 3 petals almost distinct; inner petals basally connate for 6-8 mm. Stamens 2.5-3.5 cm, glabrous; outer filament whorl basally connate for 1.5-2.5 cm. Ovary ovoid, 3-4 mm in diam., basally pale yellow tomentose or subglabrous, apically glabrous, 3-5-loculed; style 2.5-3 cm, glabrous, apically 3-5-parted. Capsule ovoid, 6-8(-12) × 5-6(-12) cm, 3-5-loculed with 1-3(-5) seeds per locule; pericarp 1-1.5 cm thick, woody. Seeds brown, 1.5-2 × 1.5-2 cm, yellow pilose. Fl. Jan-Mar, fr. Sep-Oct. 2n = 30*.
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A tree. It grows 12 m high. The leaves are leathery and narrowly oblong. They are 9-15 cm long by 3-6 cm wide. They taper to the tip and have teeth towards the end. The flowers occur singly and are white. They are 6.5 cm across. They are near the ends of branches. The fruit is an oval capsule 4.5 cm across. They split open with 3-5 valves. The seeds are 2.5 cm long. They are brown.
Can be grown by cuttings or seedlings. Seeds needs soaking.