holm tree vs Quercus ilex

holm tree and Quercus ilex both are nouns.

Word	Noun	Adjective	Verb	Adverb
holm tree	Yes	No	No	No
Quercus ilex	Yes	No	No	No

As nouns, holm tree and Quercus ilex are synonyms defined as:

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

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

holm tree (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