Gentiana quinquefolia vs stiff gentian

Gentiana quinquefolia and stiff gentian both are nouns.

Word	Noun	Adjective	Verb	Adverb
Gentiana quinquefolia	Yes	No	No	No
stiff gentian	Yes	No	No	No

As nouns, Gentiana quinquefolia and stiff gentian are synonyms defined as:

Gentiana quinquefolia and stiff gentian: gentian of eastern North America having clusters of bristly blue flowers

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

Gentiana quinquefolia (noun)	stiff gentian (noun)
gentian of eastern North America having clusters of bristly blue flowers	gentian of eastern North America having clusters of bristly blue flowers