skunkbush vs sumac

skunkbush and sumac both are nouns.

Word	Noun	Adjective	Verb	Adverb
skunkbush	Yes	No	No	No
sumac	Yes	No	No	No

As nouns, sumac is a hypernym of skunkbush; that is, sumac is a word with a broader meaning than skunkbush:

skunkbush: deciduous shrub of California with unpleasantly scented usually trifoliate leaves and edible fruit
sumac: a shrub or tree of the genus Rhus (usually limited to the non-poisonous members of the genus)

Other hypernyms of skunkbush include shumac, sumach.

skunkbush (noun)	sumac (noun)
deciduous shrub of California with unpleasantly scented usually trifoliate leaves and edible fruit	a shrub or tree of the genus Rhus (usually limited to the non-poisonous members of the genus)
	wood of a sumac