beauty bush vs shrub

beauty bush and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
beauty bush	Yes	No	No	No
shrub	Yes	No	No	No

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

beauty bush: Chinese deciduous shrub with yellow-throated pinkish flowers and bristly fruit; often cultivated as an ornamental
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of beauty bush include bush.

beauty bush (noun)	shrub (noun)
Chinese deciduous shrub with yellow-throated pinkish flowers and bristly fruit; often cultivated as an ornamental	a low woody perennial plant usually having several major stems