bur oak - Fagaceae Quercus macrocarpa

Foliage

bur oak Foliage

Bark

bur oak Bark

Bud

bur oak Bud

Flower

bur oak Flower

Fruit

bur oak Fruit

Form

bur oak Form

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Taxonomy

FamilyFagaceae
GenusQuercus
Speciesmacrocarpa
Common Namebur oak
iTree CodeQUMA2

Plant Form

FormTree: broad, spreading and rounded crown.
Height75 feet
Spread80 feet
DeciduousYes

Identification Description

FoliageDark green, irregular lobes, typically two sinuses deep to leaf center Leaf Type  Information Icon Simple
Needles0
BarkThick, grayish with deep furrows & vertical ridges
BudTerminal buds are clustered and rounded, red/brown Bud Arrangement Information Icon Alternate
TwigGray/brown with or without have corky ridges,
FlowerMale flowers slender yellow-green catkins; female flowers form at leaf base, smaller
FruitAcorn with a large fringed-cap covering 50 to 75% of the kernel
Fall Colorbrown

Site Characteristics

USDA Zones   info for zones pH LevelsSalt Tolerance
Min2a Min4.5 SoilModerate
Max8a Max8.0 SprayIntolerant

Shade ToleranceDrought ToleranceAllelopathy
Intolerant High No

Species Status

Nebraska Native Yes Check
U.S. Native Yes Check
Region of OriginNorth America
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