Shrubs or small to tall trees, the hairs simple. Leaves grouped towards the apex of the branchlets, the stipules minute, the blade eglandular basally. Flowers large (at least in tropical North America), axillary, solitary, homostylous, the prophylls foliaceous, the pedicels free, articulate below the middle; receptacle sub-cupular-shaped; sepals borne on the receptacle, caducous; petals obovate, short-unguiculate, yellow, orange or red, caducous; corona of fimbrillate glandular scales present; filaments dilated towards the base, the anthers linear-oblong, straight or curved; ovary oblong-ellipsoid, glabrous to pubescent, with 3 oo-ovulate placentae; stigmas dilated, fimbrillate. Capsules loculicidal to the middle, the pericarp muricate, glabrous to pubescent; seeds with the testa smooth to longitudinally striate.