Northern Pin Oak Quercus ellipsoidalis
Family: Fagaceae (Beech)
Other names: Pin Oak, Jack Oak
This is a rare tree in Canada, and resembles the uncommon Pin Oak.
Both are characterized by distinctive lower branches which curve
downward, while the higher branches point up. Like most Oaks, it
is highly variable, and apparently hybridizes with Black Oak, which is
bears a resemblance to anyway. Northern Pin Oak twigs are slender
and the buds are nearly hairless.
End bud(s) of Northern Pin Oak
Another view of the twig.
Closeup of a lateral bud and leaf scar
Another view of the winter twig. The buds can be slightly hairy
Another view of a mature tree
Typical shape of Northern Pin Oak leaf. However these, as with all Oaks, are highly variable
and should not be relied on as they can vary more on one tree than from species to species.
Acorn of Northern Pin Oak
Oak "apple gall" caused by a small insect. These are common on many oaks
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© 2008 Josh Sayers
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