Tree 5-25 m. Leaves chartaceous, oblong(-lanceolate), 7-25 by 2.5-10 cm, apex up to 1.5 cm acute-acuminate or subobtuse, base subcordate, broadly rounded, or attenuate, olivaceous-brown, with scattered hair scars above; Inflorescences: Fruits 1 or 2 per infructescence, ellipsoid or ovoid, 2.5-3(-3.5) by 1.7-2.6 cm, base rounded, apex rounded or acute, often with style remnant 0.5 mm, with hairs up to 0.5 mm long;
Asia-Tropical: Borneo present (Sabah present, Sarawak present), C & E Kalimantan present
Malesia: Borneo (Sarawak, Sabah, C & E Kalimantan).
1 Knema hirtella is a variable species which can easily be confused with K glauca and K stenophylla; K glauca differs in a very weak, early shed indumentum on the lower leaf surface, persistent bracteole, glabrous androphore, and glabrous (gla-brescent) fruits; K. stenophylla s.l. differs in a less stout habit, generally smaller fruits, and glabrous androphore. Knema piriformis also resembles the present species, but has differently shaped male buds. 2 Arbitrarily two largely sympatric varieties can be recognized, mainly based on indumentum. Within the species there is a considerable variation in size and shape of the fruits, but this cannot be used for a subdivision. The status of the accepted varieties is not quite clear, moreover because male flowers of the variety pilocarpa are not known.