Indian beet vs old-maid's bonnet

Indian beet and old-maid's bonnet both are nouns.

Word	Noun	Adjective	Verb	Adverb
Indian beet	Yes	No	No	No
old-maid's bonnet	Yes	No	No	No

As nouns, Indian beet and old-maid's bonnet are synonyms defined as:

Indian beet and old-maid's bonnet: stout perennial of eastern and central North America having palmate leaves and showy racemose blue flowers

Other synonyms of Indian beet include Lupinus perennis, sundial lupine, wild lupine.

Indian beet (noun)	old-maid's bonnet (noun)
stout perennial of eastern and central North America having palmate leaves and showy racemose blue flowers	stout perennial of eastern and central North America having palmate leaves and showy racemose blue flowers