American beech vs Fagus grandifolia

American beech and Fagus grandifolia both are nouns.

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

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

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

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

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