rewa-rewa vs flowering tree

rewa-rewa and flowering tree both are nouns.

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

As nouns, flowering tree is a hypernym of rewa-rewa; that is, flowering 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
flowering tree: any tree having seeds and ovules contained in the ovary

Other hypernyms of rewa-rewa include angiospermous tree.

rewa-rewa (noun)	flowering 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