Lewisia rediviva vs wild flower

Lewisia rediviva and wild flower both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lewisia rediviva	Yes	No	No	No
wild flower	Yes	No	No	No

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

Lewisia rediviva: showy succulent ground-hugging plant of Rocky Mountains regions having deep to pale pink flowers and fleshy farinaceous roots; the Montana state flower
wild flower: wild or uncultivated flowering plant

Other hypernyms of Lewisia rediviva include wildflower.

Lewisia rediviva (noun)	wild flower (noun)
showy succulent ground-hugging plant of Rocky Mountains regions having deep to pale pink flowers and fleshy farinaceous roots; the Montana state flower	wild or uncultivated flowering plant