Artemisia cana vs sagebrush

Artemisia cana and sagebrush both are nouns.

Word	Noun	Adjective	Verb	Adverb
Artemisia cana	Yes	No	No	No
sagebrush	Yes	No	No	No

As nouns, sagebrush is a hypernym of Artemisia cana; that is, sagebrush is a word with a broader meaning than Artemisia cana:

Artemisia cana: low much-branched perennial of western United States having silvery leaves; an important browse and shelter plant
sagebrush: any of several North American composite subshrubs of the genera Artemis or Seriphidium

Other hypernyms of Artemisia cana include sage brush.

Artemisia cana (noun)	sagebrush (noun)
low much-branched perennial of western United States having silvery leaves; an important browse and shelter plant	any of several North American composite subshrubs of the genera Artemis or Seriphidium