Aristotelia serrata vs shrub

Aristotelia serrata and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
Aristotelia serrata	Yes	No	No	No
shrub	Yes	No	No	No

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

Aristotelia serrata: graceful deciduous shrub or small tree having attractive foliage and small red berries that turn black at maturity and are used for making wine
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of Aristotelia serrata include bush.

Aristotelia serrata (noun)	shrub (noun)
graceful deciduous shrub or small tree having attractive foliage and small red berries that turn black at maturity and are used for making wine	a low woody perennial plant usually having several major stems