Hungarian lilac vs Syringa josikaea

Hungarian lilac and Syringa josikaea both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hungarian lilac	Yes	No	No	No
Syringa josikaea	Yes	No	No	No

As nouns, Hungarian lilac and Syringa josikaea are synonyms defined as:

Hungarian lilac and Syringa josikaea: central European upright shrub having elliptic leaves and upright clusters of lilac or deep violet flowers

Other synonyms of Hungarian lilac include Syringa josikea.

Hungarian lilac (noun)	Syringa josikaea (noun)
central European upright shrub having elliptic leaves and upright clusters of lilac or deep violet flowers	central European upright shrub having elliptic leaves and upright clusters of lilac or deep violet flowers