eastern poison oak vs Toxicodendron quercifolium

eastern poison oak and Toxicodendron quercifolium both are nouns.

Word	Noun	Adjective	Verb	Adverb
eastern poison oak	Yes	No	No	No
Toxicodendron quercifolium	Yes	No	No	No

As nouns, eastern poison oak and Toxicodendron quercifolium are synonyms defined as:

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

Other synonyms of eastern poison oak include Rhus quercifolia, Rhus toxicodenedron.

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