marsh gentian vs Gentiana pneumonanthe

marsh gentian and Gentiana pneumonanthe both are nouns.

Word	Noun	Adjective	Verb	Adverb
marsh gentian	Yes	No	No	No
Gentiana pneumonanthe	Yes	No	No	No

As nouns, marsh gentian and Gentiana pneumonanthe are synonyms defined as:

marsh gentian and Gentiana pneumonanthe: perennial Eurasian gentian with sky-blue funnel-shaped flowers of damp open heaths

Other synonyms of marsh gentian include calathian violet.

marsh gentian (noun)	Gentiana pneumonanthe (noun)
perennial Eurasian gentian with sky-blue funnel-shaped flowers of damp open heaths	perennial Eurasian gentian with sky-blue funnel-shaped flowers of damp open heaths