Blackjack Oak
| Plant Profile | |
|---|---|
| FYUSE 3D Image |
Common Name: Blackjack Oak Other Names: Blackjack Species Name: Quercus marilandica Plant Type: Woody Family Name: Fagaceae, Beech Family |
Examples of Blackjack OakQuercus marilandica
| Plant Facts | |
|---|---|
| Origin | Native |
| Duration | Perennial |
| Distribution in the U.S. | Southeastern quarter and as far north as Pennsylvania and Iowa and as far west as eastern Nebraska, Kansas and Texas |
| Distribution in Oklahoma | Throughout the state |
ID Characteristics
- Field Identification Characteristics
Vegetative
- Recognized by dead, drooping branches
- Dark, deeply furrowed blackish bark
- Dark green, 3-lobed, sharp-tipped leaves
- Awns on leaves can be missing and leaf shape highly variable
Floral
- Acorns found along twigs before leaves; cap covers one-third of fruit
- Leaf and Stem Characteristics
- Growth form: Tree
- Leaf Type: Simple
- Leaf Arrangement: Alternate
- Leaf Blade Edge: Shallow lobes
- Leaf Blade Length: 6-13 centimeters
- Floral Characteristics
- Petal Number: 0
- Flower Color: Green (catkin)
- Flower Timing: March-April
- Fruit Type: Acorn
| Habitat/Ecology | |
|---|---|
| Soil Type | Variable |
| Habitat | Dry, shallow, upland soils and rocky ridges |
| Successional Stage | Late |
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