Hydnocarpus polypetala (Sloot.) Sleum., Bot. Jahrb. 69 (1938)
Latin for 'many petals'.

Synonyms
Taraktogenos grandiflora Merr., Taraktogenos polypetala Sloot.

Description
Mid-canopy tree up to 31 m tall and 42 cm dbh. Stipules ca. 9 mm long. Leaves alternate, simple, penni-veined, lower surface covered with red-brown hairs. Flowers ca. 14 mm diameter, white-yellow, placed in cymes. Fruits ca. 56 mm diameter, browninsh, berries/capsules covered by curved, spiny appendages.

Ecology
Undisturbed mixed dipterocarp forests up to 500 m altitude. Often on hillsides and ridges, but also on alluvial sites and along rivers. On clay soils, but also on limestone. In secondary forests usually present as a pre-disturbance remnant tree.

Uses
Oil is extracted from the seeds.

Distribution
Sumatra, Borneo (throughout the island).

Local names in Borneo
Baliutod, Kelapa bout, Merore, Namih, Pagalasong, Senumpel landak, Sigi-baning.