false indigo vs bastard indigo

false indigo and bastard indigo both are nouns.

Word	Noun	Adjective	Verb	Adverb
false indigo	Yes	No	No	No
bastard indigo	Yes	No	No	No

As nouns, false indigo and bastard indigo are synonyms defined as:

false indigo and bastard indigo: an erect to spreading hairy shrub of the Pacific coast of the United States having racemes of red to indigo flowers

Other synonyms of false indigo include Amorpha californica.

As nouns, false indigo and bastard indigo are synonyms defined as:

false indigo and 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 flowers

Other synonyms of false indigo include Amorpha fruticosa.

false indigo (noun)	bastard indigo (noun)
an erect to spreading hairy shrub of the Pacific coast of the United States having racemes of red to indigo flowers	East Indian shrub
dense shrub of moist riverbanks and flood plains of the eastern United States having attractive fragrant foliage and dense racemes of dark purple flowers	an erect to spreading hairy shrub of the Pacific coast of the United States having racemes of red to indigo flowers
any of several plants of the genus Baptisia	dense shrub of moist riverbanks and flood plains of the eastern United States having attractive fragrant foliage and dense racemes of dark purple flowers