longroot vs Arenaria caroliniana

longroot and Arenaria caroliniana both are nouns.

Word	Noun	Adjective	Verb	Adverb
longroot	Yes	No	No	No
Arenaria caroliniana	Yes	No	No	No

As nouns, longroot and Arenaria caroliniana are synonyms defined as:

longroot and Arenaria caroliniana: deep-rooted perennial of southeastern United States

Other synonyms of longroot include pine-barren sandwort.

longroot (noun)	Arenaria caroliniana (noun)
deep-rooted perennial of southeastern United States	deep-rooted perennial of southeastern United States