slender medium-sized two-needled pine of eastern North America; with yellow-green needles and scaly grey to red-brown fissured bark 同义词：Pinus banksiana,
Jack pine, Pinus banksiana, is an eastern North American pine. Its native range in Canada is east of the Rocky Mountains from Northwest Territories to Nova Scotia, and the north-central and northeast of the United States from Minnesota to Maine, with the southernmost part of the range just into northwest Indiana.
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