wildflower vs flowering plant

wildflower and flowering plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
wildflower	Yes	No	No	No
flowering plant	Yes	No	No	No

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

Other hypernyms of wildflower include wilding, angiosperm.

wildflower (noun)	flowering plant (noun)
wild or uncultivated flowering plant	plants having seeds in a closed ovary