wild coffee vs horse gentian

wild coffee and horse gentian both are nouns.

Word	Noun	Adjective	Verb	Adverb
wild coffee	Yes	No	No	No
horse gentian	Yes	No	No	No

As nouns, wild coffee and horse gentian are synonyms defined as:

wild coffee and horse gentian: coarse weedy American perennial herb with large usually perfoliate leaves and purple or dull red flowers

Other synonyms of wild coffee include feverroot, tinker's root, Triostium perfoliatum.

wild coffee (noun)	horse gentian (noun)
coarse weedy American perennial herb with large usually perfoliate leaves and purple or dull red flowers	coarse weedy American perennial herb with large usually perfoliate leaves and purple or dull red flowers