- an erect to spreading hairy shrub of the Pacific coast of the United States having racemes of red to indigo flowers
Synonym: false indigoAmorpha californica
- dense shrub of moist riverbanks and flood plains of the eastern United States having attractive fragrant foliage and dense racemes of dark purple flowers
Synonym: false indigoAmorpha fruticosa
- East Indian shrub
Synonym: Tephrosia purpurea