Fagus sylvatica atropunicea vs Fagus purpurea

Fagus sylvatica atropunicea and Fagus purpurea both are nouns.

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

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

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

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

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