copper beech vs Fagus sylvatica atropunicea

copper beech and Fagus sylvatica atropunicea both are nouns.

Word	Noun	Adjective	Verb	Adverb
copper beech	Yes	No	No	No
Fagus sylvatica atropunicea	Yes	No	No	No

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

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

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

copper beech (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