goatsbeard vs wildflower

goatsbeard and wildflower both are nouns.

Word	Noun	Adjective	Verb	Adverb
goatsbeard	Yes	No	No	No
wildflower	Yes	No	No	No

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

goatsbeard: weedy European annual with yellow flowers; naturalized in United States
wildflower: wild or uncultivated flowering plant

Other hypernyms of goatsbeard include wild flower.

goatsbeard (noun)	wildflower (noun)
weedy European annual with yellow flowers; naturalized in United States	wild or uncultivated flowering plant