American larch vs tamarack

American larch and tamarack both are nouns.

Word	Noun	Adjective	Verb	Adverb
American larch	Yes	No	No	No
tamarack	Yes	No	No	No

As nouns, American larch and tamarack are synonyms defined as:

American larch and tamarack: medium-sized larch of Canada and northern United States including Alaska having a broad conic crown and rust-brown scaly bark

Other synonyms of American larch include black larch, Larix laricina.

American larch (noun)	tamarack (noun)
medium-sized larch of Canada and northern United States including Alaska having a broad conic crown and rust-brown scaly bark	medium-sized larch of Canada and northern United States including Alaska having a broad conic crown and rust-brown scaly bark