Leaves usually paripinnate; leaflets mostly in 3–18 pairs, petiolulate, without gland-dots; stipules small, extending in front of the petiole, falling very early.
Pods oblong or elliptic, flattened, the central portion tending to fall away leaving the sutures, sometimes with the seeds attached.
Ovary stipitate, the stalk fused to the side of the hypanthium; ovules several; style elongate, filiform; stigma terminal, capitate.
Stamens usually 10, free or connate below; anthers dorsifixed, dehiscing by longitudinal slits.
Seeds several, without areole, with a fleshy yellow aril partially enveloping the seed.
Trees or shrubs, evergreen or deciduous, unarmed.
Petals 5 (reduced or absent in one species), red.
Hypanthium prominent, cup-shaped.
Sepals 4, unequal, imbricate.
Flowers usually red.