Aster linarifolius vs stiff aster

Aster linarifolius and stiff aster both are nouns.

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

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

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

Aster linarifolius (noun)	stiff aster (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