wild flower vs flowering plant

wild flower and flowering plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
wild flower	Yes	No	No	No
flowering plant	Yes	No	No	No

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

Other hypernyms of wild flower include wilding, angiosperm.

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