Rhus glabra vs scarlet sumac

Rhus glabra and scarlet sumac both are nouns.

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

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

Rhus glabra 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 Rhus glabra include smooth sumac, vinegar tree.

Rhus glabra (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