scarlet maple vs swamp maple

scarlet maple and swamp maple both are nouns.

Word	Noun	Adjective	Verb	Adverb
scarlet maple	Yes	No	No	No
swamp maple	Yes	No	No	No

As nouns, scarlet maple and swamp maple are synonyms defined as:

scarlet maple and swamp maple: maple of eastern and central America; five-lobed leaves turn scarlet and yellow in autumn

Other synonyms of scarlet maple include Acer rubrum, red maple.

scarlet maple (noun)	swamp maple (noun)
maple of eastern and central America; five-lobed leaves turn scarlet and yellow in autumn	maple of eastern and central America; five-lobed leaves turn scarlet and yellow in autumn