Lewisia rediviva vs wildflower

Lewisia rediviva and wildflower both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lewisia rediviva	Yes	No	No	No
wildflower	Yes	No	No	No

As nouns, wildflower is a hypernym of Lewisia rediviva; that is, wildflower 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
wildflower: wild or uncultivated flowering plant

Other hypernyms of Lewisia rediviva include wild flower.

Lewisia rediviva (noun)	wildflower (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