magnolia vs angiospermous tree

magnolia and angiospermous tree both are nouns.

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

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

magnolia: any shrub or tree of the genus Magnolia; valued for their longevity and exquisite fragrant blooms
angiospermous tree: any tree having seeds and ovules contained in the ovary

Other hypernyms of magnolia include flowering tree.

magnolia (noun)	angiospermous tree (noun)
any shrub or tree of the genus Magnolia; valued for their longevity and exquisite fragrant blooms	any tree having seeds and ovules contained in the ovary
dried bark of various magnolias; used in folk medicine