cork oak vs Quercus suber

cork oak and Quercus suber both are nouns.

Word	Noun	Adjective	Verb	Adverb
cork oak	Yes	No	No	No
Quercus suber	Yes	No	No	No

As nouns, cork oak and Quercus suber are synonyms defined as:

cork oak and Quercus suber: medium-sized evergreen oak of southern Europe and northern Africa having thick corky bark that is periodically stripped to yield commercial cork

cork oak (noun)	Quercus suber (noun)
medium-sized evergreen oak of southern Europe and northern Africa having thick corky bark that is periodically stripped to yield commercial cork	medium-sized evergreen oak of southern Europe and northern Africa having thick corky bark that is periodically stripped to yield commercial cork