Tree, up to 44 m high, dbh up to 1.25 m, with up to 4 m high buttresses, sometimes shrub. Twigs 1.5-7 mm in diam., glabrous with the exception of the terminal bud or densely puberulous or tomentellous and early to sometimes late glabrescent. Leaves (l-)3-5(-8)-jugate; petiole 2.5-12 cm long, 1-2.5 mm thick, terete to sometimes ± semi terete; axes densely short-hairy to glabrous; petiolules (1.5—)3—8 mm long, above broadly and shallowly grooved with or without a median rib and sometimes strong lateral ribs to narrowly grooved lacking a ri 3. Leaflets 5.5-12(-20) by (2-)3-4(-7) cm, index 2.5-3.75(-4.5), widest about or somewhat below he middle, sometimes slightly falcate, beneath mostly distinctly glaucous, above glabrous or sometimes slightly puberulous on the midrib, beneath midrib and nerves mostly glabrous, between the nerves mostly minutely sericeous, glabrescent or not; domatia common to absent; base acute to sometimes obtuse or rounded; sides slightly curved to nearly straight and parallel; apex either narrowly rounded to sometimes acute, or tapering into a mostly fairly short and broad, rounded or acute acumen; nerves 0.5-1 (-2) cm apart, slightly curved veins and veinlets rather finely to rather coarsely reticulate, the veins often tending to be scalaribrm. Sepals 4 or 5, rarely 6, up to halfway connate, 1-2 mm long, outside sparsely to densely appressedly short-hairy, inside densely velutinous. Stamens (4-)5-8(-9). Fruits up to 5 by 3.5 cm, wall 1.5-2.5 mm thick.
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A variety of rambutan. The leaflets are widest at or below the middle. The midrib does not have hairs below. The veins are slightly curved.