Pterospermum javanicum Jungh., Hoev. and de Vriese Tijdschr. 7 (1840)

Latin for 'from Java'.

Emergent tree up to 59 m tall and 54 cm dbh. Stipules ca. 5 mm long. Leaves alternate, simple, tripli-veined, undersurface whitish-brownish, hairy, leaf base asymmetrical. Flowers ca. 100 mm diameter, yellowish, with very long and narrow petals, flowers placed in racemes. Fruits ca. 104 mm long, green-brown, hairy, dehiscent capsules filled with many winged seeds.

In undisturbed to disturbed (open sites) mixed dipterocarp forests up to 600 m altitude. Usually on ridges. Also found on limestone.

Timber tree, used in house construction and for furniture.

From India to New Guinea. In Borneo found in Sarawak, Sabah, Central- and East-Kalimantan. Introduced in the Neotropics.

Local names
Borneo: Bayur.