Deciduous trees. Leaves entire, petiolate, stipulate,
stipules entire, caducous. Flowers
subsessile in capitate heads with inter-floral bracteoles, heads pedunculate,
sheathed by a pair of stipules at first, terminating lateral shoots, solitary
or grouped in open, leafy inflorescence. Flowers 5-merous. Calyx tube short or
long, lobes obsolete to linear-spathulate. Corolla hypocrateriform, glabrous
outside. Stamens inserted, filaments very short or absent, anthers exserted.
Styles exserted, stigmas subglobose to mitriform, ovary 2-locular, ovules
numerous. Fruits dry, dehiscent. Seeds numerous, with short wings.