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Blackjack Oak

Quercus marilandica

Height: The blackjack oak tree usually grows to about 30 feet in natural habitats; it sometimes grows twice as tall when cultivated

Evergreen/Deciduous: Deciduous

Lifespan: Slow-growing and likely reaches or exceeds 200 years  

Fall Foliage: Unimpressive yellowish brown.

Range: Throughout the eastern U.S., as far west as precipitation allows (well past the Mississippi River)   

Typical Habitat: This is a tree of dry, rocky, often upland areas  

blackjack oak tree leaf

The Blackjack Oak Tree: A Rugged Survivor   

One of the most notable aspects of the blackjack oak is its ability and tendency to live in somewhat inhospitable areas.

But while it tolerates dry conditions and the trials and tribulations of living in exposed areas, it “shows” this hard lifestyle in its growth habit – the blackjack oak is typically small with gnarled branches.

It lacks the attractive canopy silhouette of the pin oak (Quercus palustris) or the ancient aesthetic of the white oak (Quercus alba). It just isn’t a “pretty” tree.  

Accordingly, the blackjack oak isn’t often planted as a landscape tree, and its height, spread and growth habit make it a relatively poor shade tree.

Blackjack Oak Tree Identification: Tips & Tricks

There are a couple of other oaks that sometimes produce leaves that vaguely resemble the blackjack oak. But the species you’d most likely confuse them with is the southern red oak (Quercus falcata).

But, if you can sample several leaves, you’ll usually be able to distinguish the flat-across-the-tip tendency many blackjack oaks exhibit from the curved apex lobes of the southern red oak.

The Blackjack Oak Tree: Additional Information

Want more info about the blackjack oak? Check out some of these great resources:

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