Arnica cordifolia vs wildflower

Arnica cordifolia and wildflower both are nouns.

Word	Noun	Adjective	Verb	Adverb
Arnica cordifolia	Yes	No	No	No
wildflower	Yes	No	No	No

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

Arnica cordifolia: wildflower with heart-shaped leaves and broad yellow flower heads; of alpine areas west of the Rockies from Alaska to southern California
wildflower: wild or uncultivated flowering plant

Other hypernyms of Arnica cordifolia include wild flower.

Arnica cordifolia (noun)	wildflower (noun)
wildflower with heart-shaped leaves and broad yellow flower heads; of alpine areas west of the Rockies from Alaska to southern California	wild or uncultivated flowering plant