Carolina hemlock vs Tsuga caroliniana

Carolina hemlock and Tsuga caroliniana both are nouns.

Word	Noun	Adjective	Verb	Adverb
Carolina hemlock	Yes	No	No	No
Tsuga caroliniana	Yes	No	No	No

As nouns, Carolina hemlock and Tsuga caroliniana are synonyms defined as:

Carolina hemlock and Tsuga caroliniana: medium-sized evergreen of southeastern United States having spreading branches and widely diverging cone scales

Carolina hemlock (noun)	Tsuga caroliniana (noun)
medium-sized evergreen of southeastern United States having spreading branches and widely diverging cone scales	medium-sized evergreen of southeastern United States having spreading branches and widely diverging cone scales