Castanea dentata vs American chestnut

Castanea dentata and American chestnut both are nouns.

Word	Noun	Adjective	Verb	Adverb
Castanea dentata	Yes	No	No	No
American chestnut	Yes	No	No	No

As nouns, Castanea dentata and American chestnut are synonyms defined as:

Castanea dentata and American chestnut: large tree found from Maine to Alabama

Other synonyms of Castanea dentata include American sweet chestnut.

Castanea dentata (noun)	American chestnut (noun)
large tree found from Maine to Alabama	large tree found from Maine to Alabama