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jack pine (Pinus banksiana)

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jack pine (Pinus banksiana; PINE FAMILY [Pinaceae]) Potentially tall (70-80') evergreen tree, typically much smaller because of poor sites.  Needles in bundles of 2, 1-1" long, stiff and dark green.  Bark scaly, dark gray to reddish brown.  Cones 1-2" long, generally outcurved toward the tip of the branch, with each scale topped with a single short spine.  Seeds on many individuals remain in cones until heating and drying produced by fire.  Abundant on sandy soil throughout Wisconsin.  Failure to "self-prune" gives this pine a ragged look.  [022]

 

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