Thuja plicata vs western red cedar

Thuja plicata and western red cedar both are nouns.

Word	Noun	Adjective	Verb	Adverb
Thuja plicata	Yes	No	No	No
western red cedar	Yes	No	No	No

As nouns, Thuja plicata and western red cedar are synonyms defined as:

Thuja plicata and western red cedar: large valuable arborvitae of northwestern United States

Other synonyms of Thuja plicata include canoe cedar, red cedar.

Thuja plicata (noun)	western red cedar (noun)
large valuable arborvitae of northwestern United States	large valuable arborvitae of northwestern United States