groundnut vine vs potato bean

groundnut vine and potato bean both are nouns.

Word	Noun	Adjective	Verb	Adverb
groundnut vine	Yes	No	No	No
potato bean	Yes	No	No	No

As nouns, groundnut vine and potato bean are synonyms defined as:

groundnut vine and potato bean: a North American vine with fragrant blossoms and edible tubers; important food crop of Native Americans

Other synonyms of groundnut vine include Apios americana, Apios tuberosa, groundnut, Indian potato, wild bean.

groundnut vine (noun)	potato bean (noun)
a North American vine with fragrant blossoms and edible tubers; important food crop of Native Americans	nutlike tuber; important food of Native Americans
	a North American vine with fragrant blossoms and edible tubers; important food crop of Native Americans
	twining plant of Amazon basin having large edible roots