Jack Pine Pinus banksiana
Family: Pinaceae (Pine)
Branching: Evergreen
Jack Pine has the shortest needles (2 per bundle) of Ontario's pines. It is
quite rare in extreme southern Ontario (the Carolinian forest belt) but
becomes more prevalent as you go north. Its short needles help it
stand out, especially when growing beside something like Red Pine.
Scots pine is probably the most similar in appearance to Jack
Pine, with both having shortish needles, often paired cones and flaky
bark. However, Scots Pine has a bluish tinge to the needles
whereas Jack Pine is yellowish; Jack Pine's cones are always paired on
the branch and face forward; and there is usually a marked colour
difference between the reddish bark at the top of a Scots Pine and the
more brown bark at the base (Jack Pine never gets as red as the top of
a Scots Pine) Occasionally a Jack Pine has very reddish bark on the main truck, causing it to resemble a Red Pine. However, Red Pine needles are always about twice as long as Jack Pine.
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Jack Pine branch, showing the characteristic paired cones that face forward
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Closeup of the needles. In pairs of two, short and somewhat twisted
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Another view of a Jack Pine branch
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Middle-aged Jack Pine bark
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Young Jack Pine bark
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Typical shape of Jack Pine crown
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A grove of mature Jack Pines
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© 2007 Josh Sayers
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