prairie trefoil vs prairie bird's-foot trefoil

prairie trefoil and prairie bird's-foot trefoil both are nouns.

Word	Noun	Adjective	Verb	Adverb
prairie trefoil	Yes	No	No	No
prairie bird's-foot trefoil	Yes	No	No	No

As nouns, prairie trefoil and prairie bird's-foot trefoil are synonyms defined as:

prairie trefoil and prairie bird's-foot trefoil: North American annual with red or rose-colored flowers

Other synonyms of prairie trefoil include compass plant, Lotus americanus, prairie lotus.

prairie trefoil (noun)	prairie bird's-foot trefoil (noun)
North American annual with red or rose-colored flowers	North American annual with red or rose-colored flowers