blackjack oak Fagaceae Quercus marilandica Muenchh. Listen to the Latin symbol: QUMA3 Other Fact Sheets
Leaf: Alternate, simple, 5 to 8 inches long, thickened, with 3 shallow, bristle-tipped lobes near the end of the leaf, upper surface lustrous green, lower surface paler with orange-brown pubescence.
Flower: Species is monoecious; males 2 to 4 inch long hanging catkin; females small, single or paired.
Fruit: Acorn, nut 3/4 inch long often striated, light brown, cap covers about half of the nut and is covered with loose, hairy scales.
Twig: Stout, dark brown and scruffy-hairy, reddish brown buds are 1/4 inch long, sharp, angled and fuzzy.
Bark: Very dark (almost black), rough, with blocky plates and splits.
Form: A small sized tree (20 to 30 feet tall) generally with poor form. It typically has a short trunk with a round crown made up of twisted limbs.

Looks like: turkey oak
leaf flower fruit twig bark form map
Additional Range Information:
Quercus marilandica is native to North America. Range may be expanded by planting. See states reporting blackjack oak.
More: Fall Color
External Links:
USDAFS Additional Silvics
USDA Plants Database
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Photos and text by: John Seiler,
Edward Jensen, Alex Niemiera,
and John Peterson
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