bush clover vs woody plant

bush clover and woody plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
bush clover	Yes	No	No	No
woody plant	Yes	No	No	No

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

bush clover: shrubby or herbaceous plants widely used for forage, soil improvement, and especially hay in southern United States
woody plant: a plant having hard lignified tissues or woody parts especially stems

Other hypernyms of bush clover include ligneous plant.

bush clover (noun)	woody plant (noun)
shrubby or herbaceous plants widely used for forage, soil improvement, and especially hay in southern United States	a plant having hard lignified tissues or woody parts especially stems