mountain sumac vs Rhus copallina

mountain sumac and Rhus copallina both are nouns.

Word	Noun	Adjective	Verb	Adverb
mountain sumac	Yes	No	No	No
Rhus copallina	Yes	No	No	No

As nouns, mountain sumac and Rhus copallina are synonyms defined as:

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

mountain sumac (noun)	Rhus copallina (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