Tsuga canadensis vs eastern hemlock

Tsuga canadensis and eastern hemlock both are nouns.

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

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

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

Other synonyms of Tsuga canadensis include Canadian hemlock, spruce pine.

Tsuga canadensis (noun)	eastern hemlock (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