American beech vs white beech

American beech and white beech both are nouns.

Word	Noun	Adjective	Verb	Adverb
American beech	Yes	No	No	No
white beech	Yes	No	No	No

As nouns, American beech and white beech are synonyms defined as:

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

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

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