woolly daisy vs wildflower

woolly daisy and wildflower both are nouns.

Word	Noun	Adjective	Verb	Adverb
woolly daisy	Yes	No	No	No
wildflower	Yes	No	No	No

As nouns, wildflower is a hypernym of woolly daisy; that is, wildflower is a word with a broader meaning than woolly daisy:

woolly daisy: tiny grey woolly tufted annual with small golden-yellow flower heads; southeastern California to northwestern Arizona and southwestern Utah; sometimes placed in genus Eriophyllum
wildflower: wild or uncultivated flowering plant

Other hypernyms of woolly daisy include wild flower.

woolly daisy (noun)	wildflower (noun)
tiny grey woolly tufted annual with small golden-yellow flower heads; southeastern California to northwestern Arizona and southwestern Utah; sometimes placed in genus Eriophyllum	wild or uncultivated flowering plant