flagroot vs sweet flag

flagroot and sweet flag both are nouns.

Word	Noun	Adjective	Verb	Adverb
flagroot	Yes	No	No	No
sweet flag	Yes	No	No	No

As nouns, flagroot and sweet flag are synonyms defined as:

flagroot and sweet flag: perennial marsh plant having swordlike leaves and aromatic roots

Other synonyms of flagroot include Acorus calamus, calamus, myrtle flag, sweet calamus.

flagroot (noun)	sweet flag (noun)
perennial marsh plant having swordlike leaves and aromatic roots	perennial marsh plant having swordlike leaves and aromatic roots