stiff aster vs Aster linarifolius

stiff aster and Aster linarifolius both are nouns.

Word	Noun	Adjective	Verb	Adverb
stiff aster	Yes	No	No	No
Aster linarifolius	Yes	No	No	No

As nouns, stiff aster and Aster linarifolius are synonyms defined as:

stiff aster and Aster linarifolius: wiry tufted perennial of the eastern United States with stiff erect rough stems, linear leaves and large violet flowers

stiff aster (noun)	Aster linarifolius (noun)
wiry tufted perennial of the eastern United States with stiff erect rough stems, linear leaves and large violet flowers	wiry tufted perennial of the eastern United States with stiff erect rough stems, linear leaves and large violet flowers