purple sage vs Salvia leucophylla

purple sage and Salvia leucophylla both are nouns.

Word	Noun	Adjective	Verb	Adverb
purple sage	Yes	No	No	No
Salvia leucophylla	Yes	No	No	No

As nouns, purple sage and Salvia leucophylla are synonyms defined as:

purple sage and Salvia leucophylla: silvery-leaved California herb with purple flowers

Other synonyms of purple sage include chaparral sage.

purple sage (noun)	Salvia leucophylla (noun)
silvery-leaved California herb with purple flowers	silvery-leaved California herb with purple flowers