mountain sumac vs dwarf sumac

mountain sumac and dwarf sumac both are nouns.

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

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

mountain 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 mountain sumac include black sumac, Rhus copallina, shining sumac.

mountain 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