KEY TO THE SPECIES

1Leaves once-pinnate. Floral rachis glabrous. Anthers slightly hairy on the dorsal connective. Ovary 2-ovuled. Pods unknown
1'Leaves bipinnate. Floral rachis pubescent
2Flowers sessile. Leaves with (1 or) 2 (or 3) pairs of pinnae, each pinna with (3 or) 4 (or 5) pairs of leaflets. Anthers slightly hairy at the apex and base. Ovary c. 4-ovuled. Pods often obovate-oblong, slightly oblique, 10-18 by 3-4.5 cm
2'Flowers pedicelled