Nephelium cuspidatum var. robustum (Radlk.) Leenh.

Twigs 5-15 mm in diam., tomentellous. Petiolules 7-15 mm long, above broadly or narrowly shallowly grooved without or with a strong median rib to flat. Leaflets up to 35 cm long and 5-10 cm broad, index 2.5-5, the sides straight and parallel to slightly curved; midrib above flat to sunken, nerves above prominulous to slightly sunken, intercalated veins usually at most only slightly developed, reticulum above lax. Inflorescences terminal. Sepals 25-50% connate, 1.3-1.8 mm long. Petals absent. Fruit appendages dense, narrowly strap-shaped to filiform, gradually thickened or broadened to the base, c. 1.5 cm long, curled.

A tropical plant. It grows in lowland rainforest.

The fruit are eaten raw.