Boykinia elata vs wildflower

Boykinia elata and wildflower both are nouns.

Word	Noun	Adjective	Verb	Adverb
Boykinia elata	Yes	No	No	No
wildflower	Yes	No	No	No

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

Boykinia elata: plant with leaves mostly at the base and openly branched clusters of small white flowers; western North America
wildflower: wild or uncultivated flowering plant

Other hypernyms of Boykinia elata include wild flower.

Boykinia elata (noun)	wildflower (noun)
plant with leaves mostly at the base and openly branched clusters of small white flowers; western North America	wild or uncultivated flowering plant