Nephelium ramboutan-ake (Labill.) Leenh., Blumea 31 (1986)
Latin for the local name of this species 'rambutan'.

Synonyms
Euphoria ramboutan-ake (Labill.) Labill., Litchi ramboutan-ake Labill., Nephelium glabrum var. album Hassk., Nepehlium glabrum var. nigrum Hassk., Nephelium glabrum var. rubrum Hassk., Nephelium intermedium Radlk., Nephelium mutabile Blume, Nephelium mutabile var. rigida Blume, Nephelium mutabile var. trigyna Blume, Nephelium philipinnense Monsalud et al.

Description
Mid-canopy tree up to 38 m tall and 45 cm dbh. Stipules absent. Leaves alternate, compound, leaflets penni-veined, glabrous, usually whitish below. Flowers ca. 2 mm diameter, green-yellowish, placed in panicles. Fruits ca. 37 mm long, green-yellow, soft spiny fruits. Seeds with white aril.

Ecology
In undisturbed to slightly disturbed (open sites) mixed dipterocarp and sub-montane forests up to 1300 m altitude. Usually on alluvial sites and along rivers and streams, but also on ridges. On sandy to clay soils. In secondary forests usually present as a pre-disturbance remnant.

Uses
Commonly cultivated for the edible fruits. The wood is used in general construction work. The roots are used to treat fever. The roasted seeds can be eaten and an oil is extracted from them.

Distribution
India, Indo-China, Burma, Thailand, Peninsular Malaysia, Sumatra, Java, Borneo (throughout the island), Philippines, Celebes.

Local names in Borneo
Burugal, Melenjau, Mujau, Pudun, Pulasan.