blazing star vs wild flower

blazing star and wild flower both are nouns.

Word	Noun	Adjective	Verb	Adverb
blazing star	Yes	No	No	No
wild flower	Yes	No	No	No

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

blazing star: any of various North American plants of the genus Liatris having racemes or panicles of small discoid flower heads
wild flower: wild or uncultivated flowering plant

Other hypernyms of blazing star include wildflower.

blazing star (noun)	wild flower (noun)
any of various North American plants of the genus Liatris having racemes or panicles of small discoid flower heads	wild or uncultivated flowering plant
biennial of southwestern United States having white stems and toothed leaves that is grown for its large pale yellow flowers that open in early morning