horse balm vs stoneroot

horse balm and stoneroot both are nouns.

Word	Noun	Adjective	Verb	Adverb
horse balm	Yes	No	No	No
stoneroot	Yes	No	No	No

As nouns, horse balm and stoneroot are synonyms defined as:

horse balm and stoneroot: erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers; the eastern United States

Other synonyms of horse balm include Collinsonia canadensis, horseweed, richweed, stone-root, stone root.

horse balm (noun)	stoneroot (noun)
erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers; the eastern United States	erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers; the eastern United States