Apios americana vs Apios tuberosa

Apios americana and Apios tuberosa both are nouns.

Word	Noun	Adjective	Verb	Adverb
Apios americana	Yes	No	No	No
Apios tuberosa	Yes	No	No	No

As nouns, Apios americana and Apios tuberosa are synonyms defined as:

Apios americana and Apios tuberosa: a North American vine with fragrant blossoms and edible tubers; important food crop of Native Americans

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

Apios americana (noun)	Apios tuberosa (noun)
a North American vine with fragrant blossoms and edible tubers; important food crop of Native Americans	a North American vine with fragrant blossoms and edible tubers; important food crop of Native Americans