melilot vs woody plant

melilot and woody plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
melilot	Yes	No	No	No
woody plant	Yes	No	No	No

As nouns, woody plant is a hypernym of melilot; that is, woody plant is a word with a broader meaning than melilot:

melilot: erect annual or biennial plant grown extensively especially for hay and soil improvement
woody plant: a plant having hard lignified tissues or woody parts especially stems

Other hypernyms of melilot include ligneous plant.

melilot (noun)	woody plant (noun)
erect annual or biennial plant grown extensively especially for hay and soil improvement	a plant having hard lignified tissues or woody parts especially stems