bocconia vs flowering tree

bocconia and flowering tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
bocconia	Yes	No	No	No
flowering tree	Yes	No	No	No

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

bocconia: small Central American tree having loose racemes of purple-tinted green flowers
flowering tree: any tree having seeds and ovules contained in the ovary

Other hypernyms of bocconia include angiospermous tree.

bocconia (noun)	flowering tree (noun)
small Central American tree having loose racemes of purple-tinted green flowers	any tree having seeds and ovules contained in the ovary
herb of China and Japan widely cultivated for its plumelike panicles of creamy white flowers