sagebrush vs suffrutex

sagebrush and suffrutex both are nouns.

Word	Noun	Adjective	Verb	Adverb
sagebrush	Yes	No	No	No
suffrutex	Yes	No	No	No

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

sagebrush: any of several North American composite subshrubs of the genera Artemis or Seriphidium
suffrutex: low-growing woody shrub or perennial with woody base

Other hypernyms of sagebrush include subshrub.

sagebrush (noun)	suffrutex (noun)
any of several North American composite subshrubs of the genera Artemis or Seriphidium	low-growing woody shrub or perennial with woody base