scarlet sumac vs Rhus glabra

scarlet sumac and Rhus glabra both are nouns.

Word	Noun	Adjective	Verb	Adverb
scarlet sumac	Yes	No	No	No
Rhus glabra	Yes	No	No	No

As nouns, scarlet sumac and Rhus glabra are synonyms defined as:

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

Other synonyms of scarlet sumac include smooth sumac, vinegar tree.

scarlet sumac (noun)	Rhus glabra (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