false azalea vs shrub

false azalea and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
false azalea	Yes	No	No	No
shrub	Yes	No	No	No

As nouns, shrub is a hypernym of false azalea; that is, shrub is a word with a broader meaning than false azalea:

false azalea: straggling shrub of northwestern North America having foliage with a bluish tinge and umbels of small bell-shaped flowers
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of false azalea include bush.

false azalea (noun)	shrub (noun)
straggling shrub of northwestern North America having foliage with a bluish tinge and umbels of small bell-shaped flowers	a low woody perennial plant usually having several major stems