Fagus grandifolia vs American beech

Fagus grandifolia and American beech both are nouns.

Word	Noun	Adjective	Verb	Adverb
Fagus grandifolia	Yes	No	No	No
American beech	Yes	No	No	No

As nouns, Fagus grandifolia and American beech are synonyms defined as:

Fagus grandifolia and American beech: North American forest tree with light green leaves and edible nuts

Other synonyms of Fagus grandifolia include Fagus americana, red beech, white beech.

Fagus grandifolia (noun)	American beech (noun)
North American forest tree with light green leaves and edible nuts	North American forest tree with light green leaves and edible nuts