Rocky-mountain maple vs dwarf maple

Rocky-mountain maple and dwarf maple both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rocky-mountain maple	Yes	No	No	No
dwarf maple	Yes	No	No	No

As nouns, Rocky-mountain maple and dwarf maple are synonyms defined as:

Rocky-mountain maple and dwarf maple: small maple of northwestern North America

Other synonyms of Rocky-mountain maple include Acer glabrum.

Rocky-mountain maple (noun)	dwarf maple (noun)
small maple of northwestern North America	small maple of northwestern North America