smooth sumac vs scarlet sumac

smooth sumac and scarlet sumac both are nouns.

Word	Noun	Adjective	Verb	Adverb
smooth sumac	Yes	No	No	No
scarlet sumac	Yes	No	No	No

As nouns, smooth sumac and scarlet sumac are synonyms defined as:

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

Other synonyms of smooth sumac include Rhus glabra, vinegar tree.

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