wild peach vs shrub

wild peach and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
wild peach	Yes	No	No	No
shrub	Yes	No	No	No

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

wild peach: large much-branched shrub grown primarily for its evergreen foliage
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of wild peach include bush.

wild peach (noun)	shrub (noun)
large much-branched shrub grown primarily for its evergreen foliage	a low woody perennial plant usually having several major stems