engelmannia vs wildflower

engelmannia and wildflower both are nouns.

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

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

engelmannia: common erect hairy perennial of plains and prairies of southern and central United States having flowers that resemble sunflowers
wildflower: wild or uncultivated flowering plant

Other hypernyms of engelmannia include wild flower.

engelmannia (noun)	wildflower (noun)
common erect hairy perennial of plains and prairies of southern and central United States having flowers that resemble sunflowers	wild or uncultivated flowering plant