Syringa emodi vs Himalayan lilac

Syringa emodi and Himalayan lilac both are nouns.

Word	Noun	Adjective	Verb	Adverb
Syringa emodi	Yes	No	No	No
Himalayan lilac	Yes	No	No	No

As nouns, Syringa emodi and Himalayan lilac are synonyms defined as:

Syringa emodi and Himalayan lilac: robust upright shrub of mountains of northern India having oblong-elliptic leaves and pale lilac or white malodorous flowers

Syringa emodi (noun)	Himalayan lilac (noun)
robust upright shrub of mountains of northern India having oblong-elliptic leaves and pale lilac or white malodorous flowers	robust upright shrub of mountains of northern India having oblong-elliptic leaves and pale lilac or white malodorous flowers