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n. See balsam poplar.

n. A larch, a tree of the species Larix laricina.

n. A balsam poplar, a tree of the species Populus balsamifera.

n. The American larch (Larix Americana), a coniferous tree with slender deciduous leaves; also, its heavy, close-grained timber. Called also tamarack.

n. The American larch, Larix Americana: called tamarack in the northwestern lumber-regions. See larch. Sometimes hackmetack.

n. The juniper, Juniperus communis.

n. poplar of northeastern North America with broad heart-shaped leaves

"Dad said the hackmatack was a native name for the tamarack (American, or black, larch (Larix laricina)), the roots of which were commonly used to make ships' knees (a piece used to fasten keel to hull, I believe, which had to be very strong)."

poplar    poplar tree   

tamarack