KEY TO THE SUBSPECIES

1Leaflets ovate to ovate-elliptic, the lower basiscopic principal lateral vein reaching the middle of the leaflet in most leaflets. Pod puberulous, abruptly narrowed in a stout stalk c. 2.5 mm in diameter
1'Leaflets ovate-elliptic to lanceolate, the lower basiscopic principal lateral vein not reaching the middle of the leaflet Pod glabrous, gradually tapering into a slender stalk, 1-1.5 mm in diameter