compass plant vs Lotus americanus

compass plant and Lotus americanus both are nouns.

Word	Noun	Adjective	Verb	Adverb
compass plant	Yes	No	No	No
Lotus americanus	Yes	No	No	No

As nouns, compass plant and Lotus americanus are synonyms defined as:

compass plant and Lotus americanus: North American annual with red or rose-colored flowers

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

compass plant (noun)	Lotus americanus (noun)
any of several plants having leaves so arranged on the axis as to indicate the cardinal points of the compass	North American annual with red or rose-colored flowers
North American annual with red or rose-colored flowers