gaillardia vs wildflower

gaillardia and wildflower both are nouns.

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

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

gaillardia: any plant of western America of the genus Gaillardia having hairy leaves and long-stalked flowers in hot vibrant colors from golden yellow and copper to rich burgundy
wildflower: wild or uncultivated flowering plant

Other hypernyms of gaillardia include wild flower.

gaillardia (noun)	wildflower (noun)
any plant of western America of the genus Gaillardia having hairy leaves and long-stalked flowers in hot vibrant colors from golden yellow and copper to rich burgundy	wild or uncultivated flowering plant