Shrub (on exposed ridges) to tree of 25 m high; twigs hairy directly under the hairy terminal bud, soon glabrescent, or rarely entire plant glabrous; stipules hairy (or rarely glabrous) in the terminal bud, glabrous or hairy in lateral buds. Leaves olive greyish green or brown on both surfaces or the undersurface bluish, thick coriaceous, glabrous, (broadly) elliptic to sometimes obovate, glossy above, often glaucous underneath, 4.5—9(—16) by 2.5-4.5 (-8) cm; apex not or hardly acuminate or sometimes emarginate to shortly acuminate, acumen up to 10 mm; margin thickened containing a vein; base cuneate, slightly acuminate; midrib much prominent beneath; nerves in 6-12 pairs, curved upwards and meeting in an intramarginal vein; all lesser veins forming together a dense reticulation, prominent above, slightly obscured by the coriaceousness of the leaves below, the alveoles along the midrib mostly ± isodiametric. Petiole 10—18 mm. Flowers erect, brachyblast stout, densely appressedly pubescent or pilose to nearly glabrous or more slender and glabrous, (2-)3-5 cm; pedicel 0-1.5 mm, when present densely appressedly pubescent; spathaceous bracts glabrous, only 1 pair. Outer tepals 3, greenish, 2-4 by c. 1 cm; inner tepals yellow, 6, c. 13-35 by 10 mm. Stamens up to c. 30, filament 1-3 mm, anthers 4-8 mm, connective appendage 1-2 mm; gynophore 2-5 mm or rarely absent; carpels very few (3-5 in my own collections from Bukit Raya), probably never more than 10, glabrous. Fruits without or with only few small lenticels, scars of perianth and stamens along 3 mm of the torus; seeds 1 or 2.
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