evergreen oak vs Quercus ilex

evergreen oak and Quercus ilex both are nouns.

Word	Noun	Adjective	Verb	Adverb
evergreen oak	Yes	No	No	No
Quercus ilex	Yes	No	No	No

As nouns, evergreen oak and Quercus ilex are synonyms defined as:

evergreen oak and Quercus ilex: evergreen oak of southern Europe having leaves somewhat resembling those of holly; yields a hard wood

Other synonyms of evergreen oak include holly-leaved oak, holm oak, holm tree.

evergreen oak (noun)	Quercus ilex (noun)
evergreen oak of southern Europe having leaves somewhat resembling those of holly; yields a hard wood	evergreen oak of southern Europe having leaves somewhat resembling those of holly; yields a hard wood