abelia vs shrub

abelia and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
abelia	Yes	No	No	No
shrub	Yes	No	No	No

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

abelia: any of various deciduous or evergreen ornamental shrubs of the genus Abelia having opposite simple leaves and cymes of small white or pink or purplish flowers; Asia and Mexico
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of abelia include bush.

abelia (noun)	shrub (noun)
any of various deciduous or evergreen ornamental shrubs of the genus Abelia having opposite simple leaves and cymes of small white or pink or purplish flowers; Asia and Mexico	a low woody perennial plant usually having several major stems