Tree 25-35 m; branchlets slender, glabrous, the laxly rusty-pilose tips excepted. Leaves oblong-lanceolate, subcuspidate-acuminate and acute at the apex, cuneate at the base, ± inequilateral, chartaceous to subcoriaceous, olivaceous and ± dull when dry, mostly a little rough on both sides by numerous minute tubercles, practically glabrous or very scarcely appressed-pilose specially on midrib and nerves beneath, finely crenulate or mostly subentire, 10-15(-18) by 3½-5½(-6½) cm; midrib and nerves somewhat prominent on both sides, nerves 6-7 pairs, arcuate, excurrent along the margin, veins +-transverse, rather densely and prominently reticulate on both sides; petiole 1-1.5 cm. Stipules minute, densely rusty-pilose, early deciduous. ♂ Flowers in few-flowered cymes; peduncle thick, striate, fulvous-puberulous, 0.5-1 cm. Pedicels stoutish, thickened towards the apex, glabrous, 1-1.25 cm. Sepals 8-10(-11), ± orbicular, unequal, c. 5-8 mm diam., glabrous on both faces, ciliate. Petals 12(-14), variable in size, outer ones spathulate, inner ones oblong to lanceolate, membranous, erose at the apex, long-fimbriate, 6-7 by 5-2.5 mm; scales subquadrate, 2 mm, manifestly shortly lobed at the apex, fleshy, glabrous. Filaments slender, densely set with patent, whitish hairs, 4-5 mm. Rudiment of the ovary minute, pilose. ♀ Flowers similar to the male, but mostly solitary, with numerous staminodes. Ovary ovoid, rusty-velvety, with 5 radiate, large, ± bilobed stigmas. Fruit globose, somewhat depressed, densely nigrescent-velvety, 6-8½(-11) cm diam.; exocarp fibrous; peduncle 3-4 by 1½-2½ cm, very thickened upwards.