Fagus purpurea vs Fagus sylvatica atropunicea

Fagus purpurea and Fagus sylvatica atropunicea both are nouns.

Word	Noun	Adjective	Verb	Adverb
Fagus purpurea	Yes	No	No	No
Fagus sylvatica atropunicea	Yes	No	No	No

As nouns, Fagus purpurea and Fagus sylvatica atropunicea are synonyms defined as:

Fagus purpurea and Fagus sylvatica atropunicea: variety of European beech with shining purple or copper-colored leaves

Other synonyms of Fagus purpurea include copper beech, Fagus sylvatica purpurea, purple beech.

Fagus purpurea (noun)	Fagus sylvatica atropunicea (noun)
variety of European beech with shining purple or copper-colored leaves	variety of European beech with shining purple or copper-colored leaves