Tree 13-16 m. Leaves thinly coriaceous, oblong, 16-28 by 5.5-9 cm, base short-attenuate to rounded, apex acute-acuminate; Inflorescences behind the leaves, with dense woolly-shaggy hairs up to 0.6 mm long; Fruits not seen.
Asia-Tropical: Borneo present (Sarawak present)
Malesia: Borneo (Sarawak: 1st Div.; two collections only).
This species is close to H. poly spherula, which has smaller leaves with fewer lateral nerves and attenuate base. In H. nervosa the nerves on the upper leaf surface are strong and markedly raised, and midrib and nerves on both surfaces remain covered with indumentum for a long time.