lily-of-the-valley tree vs andromeda

lily-of-the-valley tree and andromeda both are nouns.

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

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

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

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

lily-of-the-valley tree (noun)	andromeda (noun)
broad-leaved evergreen Asiatic shrub with glossy leaves and drooping clusters of white flowers	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