five-flowered gentian vs agueweed

five-flowered gentian and agueweed both are nouns.

Word	Noun	Adjective	Verb	Adverb
five-flowered gentian	Yes	No	No	No
agueweed	Yes	No	No	No

As nouns, five-flowered gentian and agueweed are synonyms defined as:

five-flowered gentian and agueweed: gentian of eastern North America having clusters of bristly blue flowers

Other synonyms of five-flowered gentian include ague weed, Gentiana quinquefolia, Gentianella quinquefolia, stiff gentian.

five-flowered gentian (noun)	agueweed (noun)
gentian of eastern North America having clusters of bristly blue flowers	gentian of eastern North America having clusters of bristly blue flowers
	perennial herb of southeastern United States having white-rayed flower heads; formerly used as in folk medicine