western mugwort vs Artemisia gnaphalodes

western mugwort and Artemisia gnaphalodes both are nouns.

Word	Noun	Adjective	Verb	Adverb
western mugwort	Yes	No	No	No
Artemisia gnaphalodes	Yes	No	No	No

As nouns, western mugwort and Artemisia gnaphalodes are synonyms defined as:

western mugwort and Artemisia gnaphalodes: perennial cottony-white herb of southwestern United States

Other synonyms of western mugwort include Artemisia ludoviciana, cudweed, prairie sage, white sage.

western mugwort (noun)	Artemisia gnaphalodes (noun)
perennial cottony-white herb of southwestern United States	perennial cottony-white herb of southwestern United States