eastern poison oak vs Rhus quercifolia

eastern poison oak and Rhus quercifolia both are nouns.

Word	Noun	Adjective	Verb	Adverb
eastern poison oak	Yes	No	No	No
Rhus quercifolia	Yes	No	No	No

As nouns, eastern poison oak and Rhus quercifolia are synonyms defined as:

eastern poison oak and Rhus quercifolia: poisonous shrub of southeastern United States causing a rash on contact

Other synonyms of eastern poison oak include Rhus toxicodenedron, Toxicodendron quercifolium.

eastern poison oak (noun)	Rhus quercifolia (noun)
poisonous shrub of southeastern United States causing a rash on contact	poisonous shrub of southeastern United States causing a rash on contact