black sumac vs dwarf sumac

black sumac and dwarf sumac both are nouns.

Word	Noun	Adjective	Verb	Adverb
black sumac	Yes	No	No	No
dwarf sumac	Yes	No	No	No

As nouns, black sumac and dwarf sumac are synonyms defined as:

black sumac and dwarf sumac: common nonpoisonous shrub of eastern North America with compound leaves and green paniculate flowers followed by red berries

Other synonyms of black sumac include mountain sumac, Rhus copallina, shining sumac.

black sumac (noun)	dwarf sumac (noun)
common nonpoisonous shrub of eastern North America with compound leaves and green paniculate flowers followed by red berries	common nonpoisonous shrub of eastern North America with compound leaves and green paniculate flowers followed by red berries