Blackjack Oak
Quercus Marilandica Muench
By, Ronnie Booth
Classification
Kingdom- Plantae
Subkingdom- Tracheobionta
Superdivision- Spermatophyta
Division- Magnoliophyta
Class- Magnoliopsida
Subclass- Hamamelididae
Order- Fagales
Family- Fagaceae
Genus- Quercus L.
Species- Quercus Mariliandica Muench 1
Shape, Type, and Form
• The blackjack oak is a tree
that grows to a maximum of
50 feet tall, mostly it is
much shorter.
• It has limbs that grow lower
to the ground and grow
downwards.
• The trunk of the tree can
grow up to a 18 inches in
diameter. The trunk is often
very knarled2
Figure 1- blackjack oak form
Bark
Figure 2- Blackjack Oak Bark
• The bark of a blackjack oak
is a gray or brown color.
• As the tree matures, the
bark becomes less smooth
and more rough.2
Twig
• The twigs of a blackjack oak
are medium sized, with
alternating leaves.
• They are brown in color and
are a little hairy.
• Most of the leaf scars on
the twigs are toward the tip
of the twigs.2
Figure 3- Blackjack Oak Twig
Leaf
Figure 4- Blackjack Oak Leaf
• The leaf of a blackjack oak’s
leaf is thicker than most
leaves.
• It has a rounded base with a
three lobed tip
• In the fall they turn a variety
of colors.3
Bud
Figure 5- Blackjack Oak Bud
• The bud of a blackjack oak
are rather small.
• They are slightly angled,
and are normally between a
half and a quarter inch
long.2
Flower
Figure 6- Blackjack Oak Flower
• The flowers are in groups of
2-3.
• They droop down.2
Fruit
Figure 7- Blackjack Oak Fruit
• The acorn is nearly round.
• They can be up to half an
inch in diameter.
• The top of the acorn covers
nearly half the acorn.2
Habitat and Range
Figure 8- Blackjack Oak Range
• The Blackjack Oak is mostly
found in poor soil.
• Mostly found on dry rocky
cliffs.
• Found mostly in the South
and Midwest.2
Uses
• The blackjack oak is mostly used for fuel,
especially charcoal. 2
Works Cited
1- USDA, NRCS. 2004. The PLANTS Database, Version 3.5
(http://plants.usda.gov/java/profile?symbol=QUMA3). National Plant Data Center, Baton
Rouge, LA 70874-4490 USA. Reviewed on 6-22-10.
2- Mohlenbrock, R. H. (n.d.). Blackjack Oak. Forest trees of illinois. Illinois: Illinois Department of
Resources Division of Forest Resources.
3- Steyermark, J.A. (1981). Quercus Marilandica Muenchh. (1981). Flora of Missouri. Annes, Iowa,
United States of America: The Iowa State University Press.
Image Cited
Figure 1: Blackjack Oak Form
No Date
Date Retrieved: 6-22-10
http://www.arlingtontx.gov/park/forestry/images/trees/Black%20Jack%20Oak.jpg
Figure 2: Blackjack Oak Bark
No Date
Date Retrieved: 6-22-10
http://www.discoveret.org/utarboretum/blackjackbark.jpg
Figure 3: Blackjack Oak Twig
2002, Steven J. Baskauf
Date Retrieved: 6-22-10
http://www.cas.vanderbilt.edu/bioimages/image/q/quma3-tw15878.htm
Figure 4: Blackjack Oak Leaf
No Date
Date Retrieved: 6-22-10
http://www.cas.vanderbilt.edu/bioimages/q/wquma3-lf15871.jpg
Images Cited
Figure 5: Blackjack Oak Bud
No Date, Craig Rowe
Date Retrieved: 6-22-10
http://3.bp.blogspot.com/_UdIftRLT2AY/SunrsB6DajI/AAAAAA
AABxo/nyYJTu6ZyKc/s400/091031BlackjackOakBud.jpg
Figure 6: Blackjack Oak Flower
2008, Will Cook
Date Retrieved: 6-22-10
http://www.duke.edu/~cwcook/trees/quma40384.jpg
Figure 7:Blackjack Oak Fruit
No Date
Date Retrieved: 6-22-10
http://www.oplin.org/tree/fact%20pages/oak_blackjack/fruit.jpg
Figure 8: USDA, NRCS. 2004. The PLANTS Database, Version 3.5
(http://plants.usda.gov/java/profile?symbol=QUMA3). National Plant Data
Center,
Baton
Rouge, LA 70874-4490 USA. Reviewed on 6-22-10.