Mojave aster vs wild flower

Mojave aster and wild flower both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mojave aster	Yes	No	No	No
wild flower	Yes	No	No	No

As nouns, wild flower is a hypernym of Mojave aster; that is, wild flower 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
wild flower: wild or uncultivated flowering plant

Other hypernyms of Mojave aster include wildflower.

Mojave aster (noun)	wild flower (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