purple boneset vs Joe-Pye weed

purple boneset and Joe-Pye weed both are nouns.

Word	Noun	Adjective	Verb	Adverb
purple boneset	Yes	No	No	No
Joe-Pye weed	Yes	No	No	No

As nouns, purple boneset and Joe-Pye weed are synonyms defined as:

purple boneset and Joe-Pye weed: North American herb having whorled leaves and terminal clusters of flowers spotted with purple

Other synonyms of purple boneset include Eupatorium purpureum, marsh milkweed, trumpet weed.

purple boneset (noun)	Joe-Pye weed (noun)
North American herb having whorled leaves and terminal clusters of flowers spotted with purple	North American herb having whorled leaves and terminal clusters of small pinkish or purple flower heads
	North American herb having whorled leaves and terminal clusters of flowers spotted with purple