Viburnum recognitum vs shrub

Viburnum recognitum and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
Viburnum recognitum	Yes	No	No	No
shrub	Yes	No	No	No

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

Viburnum recognitum: closely related to southern arrow wood; grows in the eastern United States from Maine to Ohio and Georgia
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of Viburnum recognitum include bush.

Viburnum recognitum (noun)	shrub (noun)
closely related to southern arrow wood; grows in the eastern United States from Maine to Ohio and Georgia	a low woody perennial plant usually having several major stems