Fagus sylvatica vs common beech

Fagus sylvatica and common beech both are nouns.

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

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

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

Other synonyms of Fagus sylvatica include European beech.

Fagus sylvatica (noun)	common 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