Trees. Leaves compound, pinnate; leaflets opposite, oblique. Flowers in anxillary or sub-terminal panicles. Calyx 4-6-partite. Petals 4-6, free. Sta¬mens 10; filaments united into a tube. Disc annular. Ovary ovoid, 3-5-locular; ovules many in each locule. Capsule 3-5-locular. Seeds winged.