KEY TO THE SPECIES

1Glands on lower surface of leaflets in the nerve axils and elsewhere, usually near or along the margin. Leaflets mostly répand or dentate
1'Glands on lower surface of leaflets exclusively in the nerve axils, sometimes absent. Leaflets entire
2Leaflets mostly répand, sometimes either entire or serrate-dentate. Leaves up to 4-jugate
2'Leaflets serrate-dentate. Leaves 4-7-jugate
3Petals 5, well-developed. Disc velvety. Leaflets obtuse. Twig greyish white, faintly 5-grooved
3'Petals mostly absent, rarely up to 4, rather strongly reduced. Disc woolly. Leaflets acuminate. Twig brown, terete