yellow sweet clover vs melilot

yellow sweet clover and melilot both are nouns.

Word	Noun	Adjective	Verb	Adverb
yellow sweet clover	Yes	No	No	No
melilot	Yes	No	No	No

As nouns, melilot is a hypernym of yellow sweet clover; that is, melilot is a word with a broader meaning than yellow sweet clover:

yellow sweet clover: biennial yellow-flowered Eurasian plant having aromatic leaves used as carminative or flavoring agent; widely cultivated especially as green manure or cover crop
melilot: erect annual or biennial plant grown extensively especially for hay and soil improvement

Other hypernyms of yellow sweet clover include melilotus, sweet clover.

yellow sweet clover (noun)	melilot (noun)
biennial yellow-flowered Eurasian plant having aromatic leaves used as carminative or flavoring agent; widely cultivated especially as green manure or cover crop	erect annual or biennial plant grown extensively especially for hay and soil improvement