andromeda vs Pieris japonica

andromeda and Pieris japonica both are nouns.

Word	Noun	Adjective	Verb	Adverb
andromeda	Yes	No	No	No
Pieris japonica	Yes	No	No	No

As nouns, andromeda and Pieris japonica are synonyms defined as:

andromeda and Pieris japonica: broad-leaved evergreen Asiatic shrub with glossy leaves and drooping clusters of white flowers

Other synonyms of andromeda include Japanese andromeda, lily-of-the-valley tree.

andromeda (noun)	Pieris japonica (noun)
any of several shrubs of the genus Andromeda having leathery leaves and clusters of small flowers	broad-leaved evergreen Asiatic shrub with glossy leaves and drooping clusters of white flowers
broad-leaved evergreen Asiatic shrub with glossy leaves and drooping clusters of white flowers