Crotalaria pallida is an erect, well-branched, sometimes robust perennial herb with stems that become more or less woody. It can grow up to 2 metres tall.The plant has a fairly long history of cultivation as a green manure and ground cover crop, though it is much less grown at present due to its susceptibility to pests and diseases in Asia. It is still often cultivated in southeastern USA
Invasive in the Southeast, Hawaii, and Puerto Rico.