prairie bird's-foot trefoil vs prairie trefoil

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

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

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

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

Other synonyms of prairie bird's-foot trefoil include compass plant, Lotus americanus, prairie lotus.

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