Canadian hemlock vs Tsuga canadensis

Canadian hemlock and Tsuga canadensis both are nouns.

Word	Noun	Adjective	Verb	Adverb
Canadian hemlock	Yes	No	No	No
Tsuga canadensis	Yes	No	No	No

As nouns, Canadian hemlock and Tsuga canadensis are synonyms defined as:

Canadian hemlock and Tsuga canadensis: common forest tree of the eastern United States and Canada; used especially for pulpwood

Other synonyms of Canadian hemlock include eastern hemlock, spruce pine.

Canadian hemlock (noun)	Tsuga canadensis (noun)
common forest tree of the eastern United States and Canada; used especially for pulpwood	common forest tree of the eastern United States and Canada; used especially for pulpwood