KEY TO THE VARIETIES IN MALESIA

1	Pods stout, straight, 11-15 by 0.4-0.7 cm. Leaflets hirsute, the hairs straight or ascending, highly lustrous Senna hirsuta var. hirsuta
1'	Pods arched, 15-25 by 0.3-0.5 cm. Leaflets strigulose or pilose, the hairs when loose usually incumbent or incurved, not highly lustrous Senna hirsuta var. puberula