Fagus sylvatica vs European beech

Fagus sylvatica and European beech both are nouns.

Word	Noun	Adjective	Verb	Adverb
Fagus sylvatica	Yes	No	No	No
European beech	Yes	No	No	No

As nouns, Fagus sylvatica and European beech are synonyms defined as:

Fagus sylvatica and European beech: large European beech with minutely-toothed leaves; widely planted as an ornamental in North America

Other synonyms of Fagus sylvatica include common beech.

Fagus sylvatica (noun)	European beech (noun)
large European beech with minutely-toothed leaves; widely planted as an ornamental in North America	large European beech with minutely-toothed leaves; widely planted as an ornamental in North America