Tree up to 30 m high, 50(-70) cm in diam.; buttresses up to 4 m high, extending 1 m from the trunk. Leaves bipinnate (some leaves pinnate in juvenile state), with 1 (2 or 3) pair(s) of pinnae, each pinna with (2) 3 or 4 (or 5) pairs of leaflets; petiole 2-5(-8) cm; main rachis 6-10 cm; stalk of pinnae 2-5 cm; rachis of pinnae 6 — 15( — 18) cm. Leaflets papyraceous to chartaceous, ovate-oblong to oblong-elliptic, 6-10(-17) by 2-4(-8) cm; acuminate at apex and often oblique, more or less rounded at base; petiolules 3-5 mm. Inflorescences racemose and paniculate, up to 10 cm long, the rachis loosely to densely hairy; pedicels 0.5-1 mm, articulated at the top, leaving a short, thick knob after the flower has fallen. Calyx not ciliate. Petals yellowish white. Stamens: filaments 2-6 mm.Ovary 3-6-ovuled. Pods falcate, 15-36 by 3.5-4(-5) cm, coarsely and prominently reticulate-veined; pericarp woody, c. 2 mm thick. Seeds massive, 1-5 developed, the 2 cotyledons large, thick, c. 4 by 2.5 by 2 cm, even larger in 1-seeded pods; testa pink when fresh, dark brown when dry.
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