Baptisia tinctoria vs indigo broom

Baptisia tinctoria and indigo broom both are nouns.

Word	Noun	Adjective	Verb	Adverb
Baptisia tinctoria	Yes	No	No	No
indigo broom	Yes	No	No	No

As nouns, Baptisia tinctoria and indigo broom are synonyms defined as:

Baptisia tinctoria and indigo broom: much-branched erect herb with bright yellow flowers; distributed from Massachusetts to Florida

Other synonyms of Baptisia tinctoria include horsefly weed, rattle weed.

Baptisia tinctoria (noun)	indigo broom (noun)
much-branched erect herb with bright yellow flowers; distributed from Massachusetts to Florida	much-branched erect herb with bright yellow flowers; distributed from Massachusetts to Florida