Trees. Leaves entire, penniveined; stipules small, caducous leaving curvilinear scars. Spikes terminal, pedunculate, short and dense. Calyx 5-lobed above a short tube. Petals 5, linear. Stamens 5; anthers broad, cordate-ovate; connective developed to cover back of anther sacs and form an upcurved appendage; staminodes 5. Ovary half-inferior, bilocular; styles 2; ovule 1 per locule. Capsule sessile, woody, compressed, obovoid, 2-locular, free or adnate with calyx tube leaving upper 2/3 free. Seeds obovoid or ellipsoidal.