Tree, up to 33 m high, dbh up to 70 cm, sometimes with buttresses. Leaves 1-3(-5)-jugate; Inflorescences terminal. Sepals nearly free, c. 3 mm long. Petals 4 or 5, 1.75-2 by 1.5-2 mm, the claw up to 1 mm long, the blade auricled to funnel-shaped, at least claw and outside of blade densely woolly. Stamens 8 (sometimes less?). Ovary 2-celled. Fruits flattened-ellipsoid, bulging at base to the abaxial side, 4 by 2.25 by 1.5 cm, densely shortly pubescent, fairly densely set with pyramidal warts c. 1.5 mm high, deeply irregularly fissured longitudinally (possibly thin-fleshy when fresh and rupturing only when dry; after boiling the surface closes up and the fissures are glabrous inside);
Asia-Tropical: Borneo present (Sabah present, Sarawak present)
Malesia: Borneo (Sarawak and Sabah).
Specimens of this species may key out as N. hamulatum, which differs in shorter petiolules that are narrowly deeply grooved above, smaller stiff-coriaceous leaflets, the usually barely evident intercalated veins, the far shorter sepals, and above all the distinct differentiation of the fruit appendages into a broad basal and a narrowed apical part.