A small tree 24–30 ft. high, with very hard wood; young branches much compressed, drying blackish- or reddish-brown, older ones with a few warty lenticels. Leaves elliptic to broad-oblong, shortly and obtusely acuminate or subacuminate, acute at the base, 4–9 in. long, 1 1/2–3 1/2 in. broad, chartaceous, drying brown; midrib channelled above, much raised beneath; secondary nerves about 10–14 on each side, rather oblique, straight to beyond the middle, slightly raised on both sides but principally below; veins inconspicuous; petiole 1/2– 3/4 in. long. Flowers many in subsessile, rarely distinctly peduncled, terminal or pseudoterminal clusters, or congested umbelliform inflorescences; pedicels up to 1 1/2 lin. long. Calyx very resinous; sepals rotundate-ovate, obtuse, with numerous cylindric glands within, 1/2– 3/4 lin. long. Corolla yellowish-white; tube slender, 3–3 1/2 lin. long, sparsely pubescent below the stamens; lobes flexuous, linear-oblong, as long as or slightly longer than the tube. Anthers ovate-oblong, subacute, 1/2 lin. long. Ovules about 6-seriate, 3–4 in each row.