Tree up to c. 40 m by 60 cm ø, sometimes buttressed. Branchlets terete. Leaves chartaceous to thin-coriaceous, ash-coloured above, elliptic to elliptic-oblong, sometimes ovate to ovate-oblong, 7-12 by 3.5-5.5 cm; base obtuse or cuneate; apex acute to short-acuminate; nerves 8-10 pairs; petiole 1.5-2 cm, grooved above. Panicles sometimes extra-axillary, 3-7 cm long; peduncle 1-3 cm. Pedicels 2.5-3 mm. Flowers yellow. Calyx lobes semi-orbicular, reniform, or triangular, 1 by 1.5-2 mm, entire. Petals deltoid, 2½-3 by 2.5-3 mm, entire or slightly erose, with fleshy, lobed processes ± in the central part. Stamens inserted between pistil and disk margin in pits surrounded by fleshy, subulate processes (1/3-1/2 the length of the filament); filaments ⅔-1.5 mm; anthers broadly ovoid, ⅔-1 mm long, acute. Disk dish-shaped, red, 5-angular, obtuse, 3-4 mm ø, usually covered with papillae. Pistil triangular, emerging c. 1 mm from the disk, gradually narrowed into a cylindric, short style. Ovules 10 in each cell. Fruits c. 15.5 cm long; pericarp hard, c. 0.5 cm thick. Seeds including wing 9 by 2.25 cm, seed proper 5.25 by 1 cm.
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