hoary willow vs sage willow

hoary willow and sage willow both are nouns.

Word	Noun	Adjective	Verb	Adverb
hoary willow	Yes	No	No	No
sage willow	Yes	No	No	No

As nouns, hoary willow and sage willow are synonyms defined as:

hoary willow and sage willow: North American shrub with whitish canescent leaves

Other synonyms of hoary willow include Salix candida.

hoary willow (noun)	sage willow (noun)
North American shrub with whitish canescent leaves	North American shrub with whitish canescent leaves
	willow shrub of dry places in the eastern United States having long narrow leaves canescent beneath