mountain maple vs Acer spicatum

mountain maple and Acer spicatum both are nouns.

Word	Noun	Adjective	Verb	Adverb
mountain maple	Yes	No	No	No
Acer spicatum	Yes	No	No	No

As nouns, mountain maple and Acer spicatum are synonyms defined as:

mountain maple and Acer spicatum: small shrubby maple of eastern North America; scarlet in autumn

Other synonyms of mountain maple include mountain alder.

mountain maple (noun)	Acer spicatum (noun)
small shrubby maple of eastern North America; scarlet in autumn	small shrubby maple of eastern North America; scarlet in autumn