madderwort vs angiosperm

madderwort and angiosperm both are nouns.

Word	Noun	Adjective	Verb	Adverb
madderwort	Yes	No	No	No
angiosperm	Yes	No	No	No

As nouns, angiosperm is a hypernym of madderwort; that is, angiosperm is a word with a broader meaning than madderwort:

madderwort: any of numerous trees or shrubs or vines of the family Rubiaceae
angiosperm: plants having seeds in a closed ovary

Other hypernyms of madderwort include flowering plant.

madderwort (noun)	angiosperm (noun)
any of numerous trees or shrubs or vines of the family Rubiaceae	plants having seeds in a closed ovary