shining sumac vs mountain sumac

shining sumac and mountain sumac both are nouns.

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

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

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

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

shining sumac (noun)	mountain 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