A tree 30–60 ft. high, twigs reddish and pubescent when young, at length grey and glabrous. Leaves distinctly petioled, oblong or obovate, bluntly acuminate, margin entire, base wide- to narrow-cuneate, 4–8 in. long, 1 1/2–3 1/2 in. wide, firm, dark green and dull above, paler and somewhat polished beneath, glabrous on both surfaces; secondary nerves 8–12 pairs, raised beneath, looping within the margin; petiole slightly pulvinate at the base, distinctly pulvinate and geniculate at the apex, 1 1/2–2 in. long. Panicles axillary and terminal, males as long as the females, rather shorter than the leaves; male flowers glomerate, females subsolitary; pedicels in both sexes shorter than the calyx, distinctly articulate. Male: Calyx 5- or 4-lobed, companulate below; lobes oblong, obtuse, pubescent and ciliate, strongly imbricate. Stamens 8 or 10, 2-seriate; filaments of outer series shortest, surrounded by a ring of 4 or 5 extrastaminal glands alternate with the outer stamens and opposite the calyx-lobes; anthers basifixed, erect, introrse, dehiscence longitudinal. Rudimentary ovary 3-gonous, as long as the inner stamens, 3- (rarely 2-) lobed at the apex. Female: Calyx 5- (less often 4-) partite almost to the base, otherwise as in the males. Disk cupular, denticulate and 4–5-lobed. Staminodes often present in a complete or incomplete series, hypogynous. Ovary 3-celled, glabrous; styles 3, deeply 2-partite, the arms again minutely and bluntly 2-fid. Capsule 3-celled, 3/4 in. across; cocci 2-valved, crepitant in dehiscence. Seed large, ovoid, clothed with a yellow fleshy aril, 5 lin. long, 4 lin. wide, 2 1/2 lin. thick; testa brown, shining; albumen 2-partite; cotyledons flat, broad, leafy, 3-nerved from the base, 4 lin. long, 3 lin. wide.