mountain andromeda vs shrub

mountain andromeda and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
mountain andromeda	Yes	No	No	No
shrub	Yes	No	No	No

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

mountain andromeda: ornamental evergreen shrub of southeastern United States having small white bell-shaped flowers
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of mountain andromeda include bush.

mountain andromeda (noun)	shrub (noun)
ornamental evergreen shrub of southeastern United States having small white bell-shaped flowers	a low woody perennial plant usually having several major stems