Polygamous shrub or tree, to 15 m, sometimes hemiepiphytic and growing near top of canopy, glabrous except for inflorescences. Leaves simple, whorled near apex of branches; petioles 5-25 cm long, terete; blades ovate, elliptic or obovate, 10-30 (35) cm long, 4-16 (25) cm wide, acute to long-acuminate at apex, acute to rounded at base, the larger ones conspicuously undulate. Panicles terminal, 15-20 (30) cm long, the heads dense, racemose, staminate or bisexual, the inflorescence branches with branched trichomes; bracts at branching nodes small; staminate heads 10-25-flowered, the flowers with 1 or 2 styles; bisexual heads 5-12-flowered, the flowers with 5-10 styles, the styles to ca 1 mm long; stamens to 3 mm long; both types of heads with calyx ca 1 mm long; petals 5, white, oblong, 2-2.5 mm long. Berries subglobose, to 8 mm diam; seeds few. Croat 11861. Frequent in the forest. Seasonality uncertain. Flowers and fruits in the early dry season (January and February), but mostly during the early to the middle of the rainy season (June to October), especially in July and August. Though generally found to be a small to medium-sized tree growing in the normal manner, at least one plant was seen growing as a hemiepiphyte on another tree at ca 30 m.