Fruit compressed, asymmetric, rounded at apex, with attachment of the style evident on upper margin, glandular, 1-seeded, indehiscent.
Inflorescence of axillary racemes, these sometimes aggregating into a panicle at branch ends; bracteoles absent.
Seeds compressed, narrowly winged, deeply corrugated and glandular on surface.
Stamens c.20–25, free; anthers dorsifixed, dehiscing by longitudinal slits.
Medium to large tree or sometimes a shrub, deciduous, unarmed.
Ovary compressed, with style attached on upper margin.
Sepals 4, 2 outer overlapping, 2 inner.
Hypanthium absent.
Petals absent.