Dipterocarpus kunstleri King, J. R. As. Soc. Beng. Sc. 62, 2 (1893)
Named after H.H. Kunstler, a German plant collector who worked in the Botanical Gardens of Calcutta.

Synonyms
Dipterocarpus exalatus Sloot. ex Wood, Dipterocarpus speciosus Brandis

Description
Upper canopy tree up to 50 m tall and 136 cm dbh. Stem with resin. Stipules up to ca. 70 mm long. Leaves alternate, simple, penni-veined, glabrous, lamina folded between secondary veins. Flowers ca. 80 mm in diameter, white-yellow-pink, placed in racemes. Fruits ca. 30 mm long, red-green, with two ca. 110 mm long placed on top of the nut, wind dispersed.

Ecology
In undisturbed mixed dipterocarp forests up to 100 m altitude. Often on alluvial sites, but also found on hillsides and ridges with sandy to clayey soils. In secondary forests usually present as a pre-disturbance remnant tree.

Uses
The timber is commercially harvested.

Distribution
Peninsular Malaysia, Sumatra, Borneo (Sarawak, Brunei, Sabah, East-Kalimantan), Philippines.

Local names in Borneo
Beo, Binawan, Isak, Kambalong, Karang, Karup, Keruing, Keruing kelimbing, Keruing kuntum puteh, Keruing rapak, Keruing salatus, Keruing simpor, Tabuloh, Tempudau.