Ilex vs genus Ilex

Ilex and genus Ilex both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ilex	Yes	No	No	No
genus Ilex	Yes	No	No	No

As nouns, Ilex and genus Ilex are synonyms defined as:

Ilex and genus Ilex: a large genus of dicotyledonous trees and shrubs of the family Aquifoliaceae that have small flowers and berries (including hollies)

Ilex (noun)	genus Ilex (noun)
a large genus of dicotyledonous trees and shrubs of the family Aquifoliaceae that have small flowers and berries (including hollies)	a large genus of dicotyledonous trees and shrubs of the family Aquifoliaceae that have small flowers and berries (including hollies)