maple vs angiospermous tree

maple and angiospermous tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
maple	Yes	No	No	No
angiospermous tree	Yes	No	No	No

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

maple: any of numerous trees or shrubs of the genus Acer bearing winged seeds in pairs; north temperate zone
angiospermous tree: any tree having seeds and ovules contained in the ovary

Other hypernyms of maple include flowering tree.

maple (noun)	angiospermous tree (noun)
any of numerous trees or shrubs of the genus Acer bearing winged seeds in pairs; north temperate zone	any tree having seeds and ovules contained in the ovary
wood of any of various maple trees; especially the hard close-grained wood of the sugar maple; used especially for furniture and flooring