common forest tree of the eastern United States and Canada; used especially for pulpwood
同义词：eastern hemlock??/??Canadian hemlock??/??Tsuga canadensis
small spruce of boggy areas of northeastern North America having spreading branches with dense foliage; inferior wood
同义词：black spruce??/??Picea mariana
shrubby two-needled pine of coastal northwestern United States; red to yellow-brown bark fissured into small squares
同义词：shore pine??/??lodgepole??/??lodgepole pine??/??Pinus contorta
large two-needled pine of southeastern United States with light soft wood
同义词：Pinus glabra
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