prairie bird's-foot trefoil vs Lotus americanus

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

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

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

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

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

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