Syringa reticulata vs Japanese tree lilac

Syringa reticulata and Japanese tree lilac both are nouns.

Word	Noun	Adjective	Verb	Adverb
Syringa reticulata	Yes	No	No	No
Japanese tree lilac	Yes	No	No	No

As nouns, Syringa reticulata and Japanese tree lilac are synonyms defined as:

Syringa reticulata and Japanese tree lilac: small tree of Japan having narrow pointed leaves and creamy-white flowers

Other synonyms of Syringa reticulata include Syringa amurensis japonica.

Syringa reticulata (noun)	Japanese tree lilac (noun)
small tree of Japan having narrow pointed leaves and creamy-white flowers	small tree of Japan having narrow pointed leaves and creamy-white flowers