marsh pink vs Sabbatia stellaris

marsh pink and Sabbatia stellaris both are nouns.

Word	Noun	Adjective	Verb	Adverb
marsh pink	Yes	No	No	No
Sabbatia stellaris	Yes	No	No	No

As nouns, marsh pink and Sabbatia stellaris are synonyms defined as:

marsh pink and Sabbatia stellaris: any of several pink-flowered marsh plant of the eastern United States resembling a true centaury

Other synonyms of marsh pink include American centaury, bitter floom, rose pink, Sabbatia Angularis.

marsh pink (noun)	Sabbatia stellaris (noun)
any of several pink-flowered marsh plant of the eastern United States resembling a true centaury	any of several pink-flowered marsh plant of the eastern United States resembling a true centaury