Tree up to 31 m by 40 cm. Young branches always rusty, pubescent-tomentose. Leaves oblong-elliptic to oblong-ovate, coriaceous, rusty tomentose beneath rarely above, glabrescent but vestiges of indument always found on the veins or in axils of the veins at the base, (7½-)9-18½(-24) by 3½-11 cm, shortly acuminate, base attenuate to rounded, margin rarely recurved; longitudinal nerves 3-5, prominent and elevated beneath, depressed above, sometimes a faint intramarginal vein along the margin; cross-veinlets slightly elevated, venation distinctly tessellate on both surfaces; petiole 1-1.5 cm, furrowed above. Inflorescences (inadequately known) short, branched, paniculiform, densely rusty pubescent. Flowers unisexual, sessile. Male flowers c. 1 mm long. Calyx lobes (3-)4(-5), deltoid, acute, c. 2/3 mm long. Petals minute, deltoid, c. 1/6 mm long, brownish hairy all over. Disk obscurely crenulate. Stamens c. 1/3 mm long, filament as long as the anther. Pistil rudiments c. 1/3 mm long, brownish hairy at the base. ♀ Flowers slightly cylindric, quadrangular, 1.5 mm long, densely brownish hairy outside. Calyx lobes and petals similar as in the males. Staminodes almost sessile, c. 1/6 mm long. Apex of the styles slightly curved. Fruits (immature) ellipsoid, obtuse at both ends. Mature leaves glabrous. Inflorescences up to 4 cm. Fruits 1(-2)-seeded, 8 by 4 cm, glabrous; pericarp 8-10 mm ø, exocarp soft. Seeds very hard, solid and large, 5.5 by 2 cm. The two additional specimens (ASHTON BRUN 580, S 7867) have mature inflorescences and fruit. In mature state the rusty tomentum disappears.
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