Leaves elliptic to oblong-lanceolate, (5-)15-43 cm × 2-11 cm, coriaceous, glabrous, dark green above; base cuneate, margins entire; apex acuminate, mucronate or obtuse; midrib and nerves prominent, veins reticulate; petiole 1.5-5(-9) cm long.

Inflorescences terminal or axillary panicles, crowded at apex of twigs, 10-25 cm long, glabrescent, fascicled at base and initially subtended by a crown of velvety scales, very shortly pubescent; pedicels up to ca. 1 mm long.Flowers white or creamy white, in groups of 4-5 on secondary branches, male or bisexual; bracts triangular; calyx 4-lobed, lobes ovate-oblong, 1.5-3 mm long, glabrescent, persistent; petals 4, ovate-oblong, 3-5 mm long, glabrous, white or creamy white, with ridges on inner surface closely adjacent with apical, glandular thickenings; disk 4-lobed and papillose; stamens 5, 1 fertile, free, 2-3 mm long; style 2-3 mm long, excentric.

Fruit an ellipsoid to ovoid drupe, slightly compressed, 5-8 cm × 3-6 cm, weight about 40 g, green turning yellowish; peel tender, up to 1.7 mm thick; flesh slightly fibrous, white, resinous, acid to slightly sweet.

Low elevation up to 400m,

Main flowering is early in the dry season (October-November to January-February), but flowers and fruits can be found the whole year round

Primary, lowland, inland forest, sometimes in coastal forest

M. altissima is usually propagated by seed, although it can be readily propagated by cleft grafting, using either seedlings of mango or M. altissima as a rootstock. Grafted M. altissima trees remain much smaller and have a more compact crown than seedling trees. Unlike the mango, flowering in M. altissima cannot be brought about by foliar spraying with potassium nitrate. Typical mango pests such as leaf hoppers, tip borers and seed borers do not seem to affect M. altissima .