Blackjack Oak

Quercus marilandica

Description:


The blackjack oak is a very tough tree that can grow in undesirable locations - poor soil, rocky soil, or dry soil. Very drought tolerant. It is a small to medium sized oak, not growing nearly as large as other red oaks.

Distribution:


Southeastern US. West to Texas, north to extreme southern Iowa, east to New Jersey, south to the Florida Panhandle.


Distribution Map

Habitat:


Dry, rocky, or poor soil

Leaf:


Leaves are thick, leathery and glossy. Generally with 3 oddly rounded lobes and shaped like a duck's foot, they may vary in shape and size considerably. Midvein and side veins protrude above the top surface of the leaf, and the leaf is pubescent (fuzzy) especially on the underside.

Blackjack Oak

Bark:


Dark gray to black, often resembling charcoal. May bear some resemblance to persimmon tree bark, but often retains dead branches along the trunk. Young bark is smoother and more fissured, resembling that of southern red oak or black oak.

Blackjack Oak

Acorn:


Small, high in tannin, not preferred by wildlife unless it's the only acorn available.

Blackjack Oak

Gallery

Look-alike oaks:


Blackjack oak is very unique in appearance, however the leathery leaves may resemble those of post oak from a distance. The bark and leaf shape will easily distinguish the two when observed up close.

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