rewa-rewa vs angiospermous tree

rewa-rewa and angiospermous tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
rewa-rewa	Yes	No	No	No
angiospermous tree	Yes	No	No	No

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

rewa-rewa: slender elegant tree of New Zealand having racemes of red flowers and yielding valuable mottled red timber
angiospermous tree: any tree having seeds and ovules contained in the ovary

Other hypernyms of rewa-rewa include flowering tree.

rewa-rewa (noun)	angiospermous tree (noun)
slender elegant tree of New Zealand having racemes of red flowers and yielding valuable mottled red timber	any tree having seeds and ovules contained in the ovary