Acer negundo vs maple

Acer negundo and maple both are nouns.

Word	Noun	Adjective	Verb	Adverb
Acer negundo	Yes	No	No	No
maple	Yes	No	No	No

As nouns, maple is a hypernym of Acer negundo; that is, maple is a word with a broader meaning than Acer negundo:

Acer negundo: common shade tree of eastern and central United States
maple: any of numerous trees or shrubs of the genus Acer bearing winged seeds in pairs; north temperate zone

Acer negundo (noun)	maple (noun)
common shade tree of eastern and central United States	any of numerous trees or shrubs of the genus Acer bearing winged seeds in pairs; north temperate zone
	wood of any of various maple trees; especially the hard close-grained wood of the sugar maple; used especially for furniture and flooring