northern white cedar vs white cedar

northern white cedar and white cedar both are nouns.

Word	Noun	Adjective	Verb	Adverb
northern white cedar	Yes	No	No	No
white cedar	Yes	No	No	No

As nouns, northern white cedar and white cedar are synonyms defined as:

northern white cedar and white cedar: small evergreen of eastern North America having tiny scalelike leaves on flattened branchlets

Other synonyms of northern white cedar include American arborvitae, Thuja occidentalis.

northern white cedar (noun)	white cedar (noun)
small evergreen of eastern North America having tiny scalelike leaves on flattened branchlets	slow-growing medium-sized cedar of east coast of the United States; resembles American arborvitae
	small evergreen of eastern North America having tiny scalelike leaves on flattened branchlets