WordNet (r) 3.0 (2006):

false indigo
    n 1: any of several plants of the genus Baptisia [syn: wild
         indigo, false indigo]
    2: dense shrub of moist riverbanks and flood plains of the
       eastern United States having attractive fragrant foliage and
       dense racemes of dark purple flowers [syn: false indigo,
       bastard indigo, Amorpha fruticosa]
    3: an erect to spreading hairy shrub of the Pacific coast of the
       United States having racemes of red to indigo flowers [syn:
       false indigo, bastard indigo, Amorpha californica]