Evergreen tree with bisexual flowers. Leaves entire, penninerved. Stipules small, early caducous, leaving annular scars. Flowers in dense, globose heads, free, sessile. Calyx closed in bud, before anthesis circumscissile, caducous, leaving a narrow annulus. Petals 5, linear-spathulate. Stamens 5, alternipetalous; filaments very short, stout; anthers basifix, ellipsoid-obovoid, laterally flattened, with 4 pollen sacs, 2-celled, dehiscing laterally with 4 valves; connective produced into a curved adaxial horn and two abaxial teeth. Staminodes 5, epipetalous, adaxially horned as stamens. Disk 10-lobed. Ovary half-inferior, 2-celled, each cell with 1 pendent ovule; styles 2, very short, slender, stigma apical, minute. Fruits shortly and stoutly pedicelled, free, ovoid, 2-celled, 4-valved, woody, to about halfway enveloped by the receptacle. Seed 1 in each cell, wingless.
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