sweet clover vs melilotus

sweet clover and melilotus both are nouns.

Word	Noun	Adjective	Verb	Adverb
sweet clover	Yes	No	No	No
melilotus	Yes	No	No	No

As nouns, sweet clover and melilotus are synonyms defined as:

sweet clover and melilotus: erect annual or biennial plant grown extensively especially for hay and soil improvement

Other synonyms of sweet clover include melilot.

sweet clover (noun)	melilotus (noun)
erect annual or biennial plant grown extensively especially for hay and soil improvement	erect annual or biennial plant grown extensively especially for hay and soil improvement