Medium sized tree, to 25 m height, 80 cm girth. Leaves coriaceous, elliptic, (6-)10- 14(—19) by 2-6(-8.5) cm, midrib markedly impressed above and prominent below, apex (short-)acuminate, acute or obtuse, base obtuse to attenuate, margins markedly revolute; petioles 10-35 mm long, groove on adaxial surface. Flowers axillary on young growth or occasionally ramiflorous/cauliflorous, generally solitary; pedicels up to 50 mm long at anthesis. Fruit of up to 14 follicles, n = 14, 2n = 28 .
Borneo, from Mt Kinabalu (Sabah) in the north to the Linau- Balui Plateau (Sarawak) in the south present, northern Kalimantan present
Malesia: Borneo, from Mt Kinabalu (Sabah) in the north to the Linau- Balui Plateau (Sarawak) in the south; also reported from northern Kalimantan.