Nephelium philippense Monsalud et al.

Tree, up to 24 m tall, trunk 45 cm in diameter, buttresses up to 1.5 m tall. "Leaves (1-)3-7(-18)-jugate, petiole 3-9 cm long, petiolules 2-4 mm; leaflets 5-11 cm x 1.5-3.5 cm, 2.5-6 times as long as wide. " "Inflorescences terminal and axillary; petals absent; stamens 5-6, pistil 1-2-merous." Fruit ellipsoid to subglobular, 3 cm x 2.25 cm, sparsely set with thick warts tapering into up to 7.5-mm long appendages, red. N. ramboutan-ake is a variable species and may closely resemble N. lappaceum. The spines on the fruits are usually short and stubby in N. ramboutan-ake and long filiform in N. lappaceum. Seedlings of N. juglandifolium and N. ramboutan-ake differ in being semi-hypogeal and in having tardily emergent cotyledons.

N. ramboutan-ake usually occurs on sand or clay.

N. ramboutan-ake occurs mostly in lowland primary forests, often on river banks but rarely in swamps, usually on sand or clay.

N. ramboutan-ake occurs in India (Assam), Burma, Indonesia, Malaysia, Singapore, Sumatra, Java (doubtful), Borneo and the Philippines; it is often cultivated as well. It is also planted locally and possibly indigenous in the Moluccas.

The cultivation of N. ramboutan-ake is similar to N. lappaceum, but in general the trees require less space. It is said to be less productive than the rambutan.

Food: The fruits are edible.