Unarmed tree. Stipules not seen. Leaves bipinnate, rachis and pinnae with extrafloral nectaries; leaflets opposite. Inflorescences composed of pedunculate racemes axillary to the distal leaves. Flowers uniform, pentamerous, bisexual. Calyx connate, valvate. Corolla connate, valvate. Stamens numerous, united into a tube at the base, staminal tube and corolla-tube shortly united at the base. Ovary solitary. Pods woody, flat, straight or slightly curved, tardily dehiscent, not segmented, not reddish inside; endocarp chartaceous, loosening, and at dehiscence forming small, closed envelopes around each seed. Seeds circular, flattened, unwinged, with pleurogram, without aril, testa thick, crustace-ous; endosperm absent; cotyledons large.
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