Sabbatia stellaris vs rose pink

Sabbatia stellaris and rose pink both are nouns.

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

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

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

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

Sabbatia stellaris (noun)	rose pink (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