red maple vs swamp maple

red maple and swamp maple both are nouns.

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

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

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

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

red 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