meadow salsify vs wildflower

meadow salsify and wildflower both are nouns.

Word	Noun	Adjective	Verb	Adverb
meadow salsify	Yes	No	No	No
wildflower	Yes	No	No	No

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

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

Other hypernyms of meadow salsify include wild flower.

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