ague root vs ague grass

ague root and ague grass both are nouns.

Word	Noun	Adjective	Verb	Adverb
ague root	Yes	No	No	No
ague grass	Yes	No	No	No

As nouns, ague root and ague grass are synonyms defined as:

ague root and ague grass: colicroot having a scurfy or granuliferous perianth and white flowers; southeastern United States

Other synonyms of ague root include Aletris farinosa.

ague root (noun)	ague grass (noun)
colicroot having a scurfy or granuliferous perianth and white flowers; southeastern United States	colicroot having a scurfy or granuliferous perianth and white flowers; southeastern United States