heliopsis vs wild flower

heliopsis and wild flower both are nouns.

Word	Noun	Adjective	Verb	Adverb
heliopsis	Yes	No	No	No
wild flower	Yes	No	No	No

As nouns, wild flower is a hypernym of heliopsis; that is, wild flower is a word with a broader meaning than heliopsis:

heliopsis: any North American shrubby perennial herb of the genus Heliopsis having large yellow daisylike flowers
wild flower: wild or uncultivated flowering plant

Other hypernyms of heliopsis include wildflower.

heliopsis (noun)	wild flower (noun)
any North American shrubby perennial herb of the genus Heliopsis having large yellow daisylike flowers	wild or uncultivated flowering plant