Taxonomy
| Clade | angiosperm |
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| Family | Fagaceae |
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| Genus | Quercus |
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| Species | rubra |
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| Common Name | northern red oak |
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| iTree Code | QURU5 |
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Plant Form
| Form | Tree: rounded and symmetrically crown |
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| Height | 80 feet |
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| Spread | 50 feet |
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| Deciduous | Yes |
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Identification Description
| Foliage | green, lobed with bristled tips 4-8” long; shallow sinuses |
Leaf Type
 |
Simple |
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| Bark | light gray/brown, smooth when young; gray with flat-topped ridges, deep furrows with ages |
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| Bud | terminal: conical, pointed; lateral: slightly raised; both having overlapping scales (imbricate)
, many layers of scales, red to grayish brown |
Bud Arrangement
|
Alternate |
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| Twig | slender, red/brown with lenticels |
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| Flower | male: green-yellow catkins in large groups; male and female on same tree (monoecious) |
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| Fruit | acorn with shallow cap about 1/4 of the length, mature in autumn after two seasons |
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| Fall Color | dark red |
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Site Characteristics
| USDA Zones
|
pH Levels | Salt Tolerance |
| Min | 3b |
Min | 4.3 |
Soil | Moderate |
| Max | 8a |
Max | 7.3 |
Spray | Moderate |
| Shade Tolerance | Drought Tolerance | Allelopathy |
| Intermediate |
Intolerant |
Yes |
Species Status
| Nebraska Native |
|
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| U.S. Native |
|
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| Region of Origin | United States, Canada |
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| More Information | Visit External Site |
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