Tree 5-25 m. Leaves (rigidly) coriaceous, (oblong-)lanceolate, 9-21 by 2.5-5 cm, base (rounded or) attenuate, apex acute-acuminate; Inflorescences: Fruits 1 or 2 per infructescence, ovoid or oblong, base rounded, apex acute or short-apiculate, ± ridged along the line of suture, 2-4.5 by 1.5-3 cm, with yellowish brown to rusty hairs 0.1-0.2 mm long;
Asia-Tropical: Borneo present (Sabah present), Mt Kinabalu area endemic
Malesia: Borneo (Sabah, endemic to the Mt Kinabalu area).
2 In most of the herbarium material the mature fruits are partly ridged along the line of suture, but in a few specimens this ridge is lacking. 1 Knema kinabaluensis cornes close to K. cinerea and K. glauca, possibly most closely to the latter which differs in less coriaceous leaves, persistent bracteole, and early glabrescent fruits. By its coriaceous leaves K kinabaluensis resembles K. rigidi-folia from Peninsular Malaysia and also resembles certain coriaceous-leaved forms referred to K. pectinata from Sarawak, and K kunstleri subsp. alpina from Sabah. Knema rigidifolia differs in the shape of male buds and fruits, and the indumentum on the lower leaf surface; K. pectinata has stouter twigs, larger male buds, and more globose fruits; K kunstleri can always be recognized by the blackish dots on the lower leaf surface.