Pieris japonica vs lily-of-the-valley tree

Pieris japonica and lily-of-the-valley tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pieris japonica	Yes	No	No	No
lily-of-the-valley tree	Yes	No	No	No

As nouns, Pieris japonica and lily-of-the-valley tree are synonyms defined as:

Pieris japonica and lily-of-the-valley tree: broad-leaved evergreen Asiatic shrub with glossy leaves and drooping clusters of white flowers

Other synonyms of Pieris japonica include andromeda, Japanese andromeda.

Pieris japonica (noun)	lily-of-the-valley tree (noun)
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