Artemisia ludoviciana vs Artemisia gnaphalodes

Artemisia ludoviciana and Artemisia gnaphalodes both are nouns.

Word	Noun	Adjective	Verb	Adverb
Artemisia ludoviciana	Yes	No	No	No
Artemisia gnaphalodes	Yes	No	No	No

As nouns, Artemisia ludoviciana and Artemisia gnaphalodes are synonyms defined as:

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

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

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