stokes' aster vs Stokesia laevis

stokes' aster and Stokesia laevis both are nouns.

Word	Noun	Adjective	Verb	Adverb
stokes' aster	Yes	No	No	No
Stokesia laevis	Yes	No	No	No

As nouns, stokes' aster and Stokesia laevis are synonyms defined as:

stokes' aster and Stokesia laevis: erect perennial of southeastern United States having large heads of usually blue flowers

Other synonyms of stokes' aster include cornflower aster.

stokes' aster (noun)	Stokesia laevis (noun)
erect perennial of southeastern United States having large heads of usually blue flowers	erect perennial of southeastern United States having large heads of usually blue flowers