| Noun | 1.bastard indigo - East Indian shrubTephrosia purpureahoary pea - a plant of the genus Tephrosia having pinnate leaves and white or purplish flowers and flat hairy pods | | 2. bastard indigo - dense shrub of moist riverbanks and flood plains of the eastern United States having attractive fragrant foliage and dense racemes of dark purple flowersAmorpha fruticosa, false indigoamorpha - any plant of the genus Amorpha having odd-pinnate leaves and purplish spicate flowers | | 3.bastard indigo - an erect to spreading hairy shrub of the Pacific coast of the United States having racemes of red to indigo flowersAmorpha californica, false indigoamorpha - any plant of the genus Amorpha having odd-pinnate leaves and purplish spicate flowers |