Large tree. Parts of petals exposed in bud, inside of stipules and ovary apex densely silky cream pubescent, parts otherwise glabrous. Twig c. 3 mm ø, subterete, blackish, minutely pale lenticellate. Bud to 12 by 3 mm, lanceolate-falcate, drying black; stipule to 8 by 0.5 cm, linear-lanceolate, subacute. Leaves 8-13 by 3.3-7 cm, ± broadly elliptic, coriaceous, drying dark chocolate-brown; base cuneate; acumen to 5 mm long, short, nerves (7-)9-11 pairs, slender but prominent beneath, ascending; tertiary nerves densely sca-lariform, very slender and barely elevated beneath; petiole 2-2.8 cm long, slender. Inflorescence to 8 cm long, singly branched or unbranched, bearing up to 5 flowers. Flower buds to 2.5 by 1 cm. Stamens c. 30, exceeding style at anthesis; filaments filiform, slender, c. 1/3 length of the short linear-lorate ± tapering subauriculate anthers; appendage acicular, slender, c. 1/2 length of anther; ovary small, ovoid, puberulent as also the basal 1/2 of the stoutly columnar style. Fruit pedicel to 3 by 3 mm, stout. Fruit calyx to 3.5 cm ø, globose to sub turbinate, smooth; 2 longer lobes to 14 by 3 cm, lorate, tapering apically, obtuse, abruptly constricted to c. 8 mm wide and subrevolute at base; 3 shorter lobes to 1 by 1 cm, prominent, suborbicular, subrevolute.
Frequently gregarious in semi-evergreen and evergreen coastal dipterocarp forests in periodically or seasonally dry climates, on red lateritic soils, on undulating land and hills at elevations below 400 metres.
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Semi-evergreen and evergreen coastal dipterocarp forests in periodically or seasonally dry climates, on red lateritic soils, on undulating land and hills below 400 m; frequently gregarious.
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