longroot vs pine-barren sandwort

longroot and pine-barren sandwort both are nouns.

Word	Noun	Adjective	Verb	Adverb
longroot	Yes	No	No	No
pine-barren sandwort	Yes	No	No	No

As nouns, longroot and pine-barren sandwort are synonyms defined as:

longroot and pine-barren sandwort: deep-rooted perennial of southeastern United States

Other synonyms of longroot include Arenaria caroliniana.

longroot (noun)	pine-barren sandwort (noun)
deep-rooted perennial of southeastern United States	deep-rooted perennial of southeastern United States