Ilex cornuta vs shrub

Ilex cornuta and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ilex cornuta	Yes	No	No	No
shrub	Yes	No	No	No

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

Ilex cornuta: dense rounded evergreen shrub of China having spiny leaves; widely cultivated as an ornamental
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of Ilex cornuta include bush.

Ilex cornuta (noun)	shrub (noun)
dense rounded evergreen shrub of China having spiny leaves; widely cultivated as an ornamental	a low woody perennial plant usually having several major stems