ash-leaved maple vs Acer negundo

ash-leaved maple and Acer negundo both are nouns.

Word	Noun	Adjective	Verb	Adverb
ash-leaved maple	Yes	No	No	No
Acer negundo	Yes	No	No	No

As nouns, ash-leaved maple and Acer negundo are synonyms defined as:

ash-leaved maple and Acer negundo: common shade tree of eastern and central United States

Other synonyms of ash-leaved maple include box elder.

ash-leaved maple (noun)	Acer negundo (noun)
common shade tree of eastern and central United States	common shade tree of eastern and central United States