Mojave aster vs wildflower

Mojave aster and wildflower both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mojave aster	Yes	No	No	No
wildflower	Yes	No	No	No

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

Mojave aster: wild aster having greyish leafy stems and flower heads with narrow pale lavender or violet rays; of rocky desert slopes California to Arizona and Utah
wildflower: wild or uncultivated flowering plant

Other hypernyms of Mojave aster include wild flower.

Mojave aster (noun)	wildflower (noun)
wild aster having greyish leafy stems and flower heads with narrow pale lavender or violet rays; of rocky desert slopes California to Arizona and Utah	wild or uncultivated flowering plant