Kolkwitzia amabilis vs shrub

Kolkwitzia amabilis and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kolkwitzia amabilis	Yes	No	No	No
shrub	Yes	No	No	No

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

Kolkwitzia amabilis: 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 Kolkwitzia amabilis include bush.

Kolkwitzia amabilis (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