wild carrot vs wildflower

wild carrot and wildflower both are nouns.

Word	Noun	Adjective	Verb	Adverb
wild carrot	Yes	No	No	No
wildflower	Yes	No	No	No

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

wild carrot: a widely naturalized Eurasian herb with finely cut foliage and white compound umbels of small white or yellowish flowers and thin yellowish roots
wildflower: wild or uncultivated flowering plant

Other hypernyms of wild carrot include wild flower.

wild carrot (noun)	wildflower (noun)
a widely naturalized Eurasian herb with finely cut foliage and white compound umbels of small white or yellowish flowers and thin yellowish roots	wild or uncultivated flowering plant