western red cedar vs red cedar

western red cedar and red cedar both are nouns.

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

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

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

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

western red cedar (noun)	red cedar (noun)
large valuable arborvitae of northwestern United States	tall tree of the Pacific coast of North America having foliage like cypress and cinnamon-red bark
	small juniper found east of Rocky Mountains having a conic crown, brown bark that peels in shreds, and small sharp needles
	large valuable arborvitae of northwestern United States
	fragrant reddish wood of any of various red cedar trees