Syringa amurensis japonica vs Syringa reticulata

Syringa amurensis japonica and Syringa reticulata both are nouns.

Word	Noun	Adjective	Verb	Adverb
Syringa amurensis japonica	Yes	No	No	No
Syringa reticulata	Yes	No	No	No

As nouns, Syringa amurensis japonica and Syringa reticulata are synonyms defined as:

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

Other synonyms of Syringa amurensis japonica include Japanese tree lilac.

Syringa amurensis japonica (noun)	Syringa reticulata (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