Rhus diversiloba vs western poison oak

Rhus diversiloba and western poison oak both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rhus diversiloba	Yes	No	No	No
western poison oak	Yes	No	No	No

As nouns, Rhus diversiloba and western poison oak are synonyms defined as:

Rhus diversiloba and western poison oak: poisonous shrub of the Pacific coast of North America that causes a rash on contact

Other synonyms of Rhus diversiloba include Toxicodendron diversilobum.

Rhus diversiloba (noun)	western poison oak (noun)
poisonous shrub of the Pacific coast of North America that causes a rash on contact	poisonous shrub of the Pacific coast of North America that causes a rash on contact