black sumac vs shining sumac

black sumac and shining sumac both are nouns.

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

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

black sumac and shining 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 dwarf sumac, mountain sumac, Rhus copallina.

black sumac (noun)	shining 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