• Photo of Quercus alba (Quercus albas)

Plant Profile: Quercus alba

Taxonomy: Quercus alba

Names

Oaks, White Oak

  • Photo of Quercus alba (Quercus albas)

Phonetic Spelling:KWER-kus AL-ba

Genus:Quercus

Species:alba

Family:Fagaceae

The White Oak is a deciduous tree belonging to the beech family, indigenous to the forested regions of eastern North America. In North Carolina, it predominantly thrives in the Piedmont area, but it can also be found at lower elevations in the mountains and along the coastal plain, favoring dry, mesic forests. This tree grows slowly, typically reaching heights of 80 to 100 feet, with the potential to attain 135 feet and an 80-foot spread. Its deep taproot complicates transplantation. Known for its longevity and aesthetic appeal, the White Oak features a rounded, spreading crown.

This species thrives in coarse, deep, moist, well-drained, slightly acidic soils with moderate fertility, though it can adapt to various soil types, excluding overly wet conditions. Once established, it demonstrates good drought resistance. In autumn, its foliage turns a striking wine red. The White Oak serves well as a shade tree in expansive yards or parks and is beneficial in naturalized areas for wildlife.

While the tree is susceptible to various insect and disease pests, the impact is usually minimal. It is also sensitive to soil compaction.

Quercus alba Feature Summary

Quercus alba Image Gallery

Tags

#fall color
#shade tree
#poisonous
#full sun tolerant
#heat tolerant
#drought tolerant
#wildlife plant
#partial sun
#native tree
#moths
#tree
#nectar plant
#cover plant
#spring flowers
#tsc
#street tree
#playground
#small mammals
#food source
#cpp
#low flammability
#NC native
#black bears
#deer resistant
#woodpeckers
#blue jays
#acorns
#nighttime garden
#children's garden
#fire resistant
#edible fruits
#Braham Arboretum
#fantz
#larval host plant
#food source fall
#food source herbage
#rocky soils tolerant
#clay soils tolerant
#bird friendly
#dry soils tolerant
#food source hard mast fruit
#fall color red
#butterfly friendly
#moth larvae
#FACU Piedmont Mountains
#FACU Coastal
#partial shade tolerant
#tsc-t
#pollinator garden
#problem for horses
#black walnut toxicity tolerant
#audubon
#banded hairstreak butterfly
#gray hairstreak butterfly
#imperial moth
#juvenal’s duskywing butterfly
#edward’s hairstreak butterfly
#white-m hairstreak butterfly
#horace’s duskywing butterfly

Similar Plants

Quercus alba is often confused with:

Quercus alba Feature Summary

Attributes
Hardwood timber for flooring, woodwork, barrels, ships and more.
South East Canada to Central & Eastern U.S.A
Found along the entire eastern United States and west into Texas
Oak trees support a wide variety of Lepidopteran. You may see Imperial Moth (Eacles imperialis) larvae which have one brood per season and appear from April-October in the south. Adult Imperial Moths do not feed. Banded Hairstreak (Satyrium calanus), which have one flight from June-August everywhere but Florida where they emerge April-May. Edward's Hairstreak (Satyrium edwardsii), has one flight from May-July in the south and June-July in the north. Gray Hairstreak (Strymon melinus), has three to four flights in the south from February-November and two flights in the north from May-September. White-M Hairstreak (Parrhasius m-album) has three broods in the north from February-October. Horace’s Duskywing (Erynnis horatius) has three broods in Texas and the deep south from January-November, and two broods in the north from April-September. Juvenal’s Duskywing (Erynnis juvenalis) has one brood from April-June, appearing as early as January in Florida. The Acorns are eaten by woodpeckers, blue joys, small mammals, wild turkeys, white-tailed deer, and black bear.
Acorns (nuts) are edible after tannins are leached or boiled out
Edible fruit
Wildlife Food Source
Wildlife Nesting
Wildlife Larval Host
low flammability
Fruit
1/2-1 inch long acorns are elongated and have a shallow cup that covers 1/4 of the nut. The cup is light tan or gray with warty scales. Acorns mature the first year and can be numerous and are a light brown color. Nuts appear from September-November.
Brown/Copper
Gray/Silver
< 1 inch
Flowers
Male flowers are produced as greenish-yellow catkins in pendulous clusters about 2-3½" long. Female flowers are smaller and greenish-red and are few in spikes in axils of emerging leaves. Flowers appear in April.
Gold/Yellow
Red/Burgundy
Green
Insignificant
Catkin
Leaves
4-9 inch long by 2-4 inch wide leaves have 5-9 deep, rounded and even lobes per leaf. They have a rounded tip and a wedge-shaped base. The sinuses vary in depth and some may reach near the midrib. Color is bright green with whitish undersides. The fall color is purplish-brown to reddish-brown and develops late. A few leaves may persist into winter. Leaves are alternate, simple, obovate to oblong-obovate, and cuneate. Lobes are entire and obtuse. Lower surface is glaucous beneath.
Green
White
Purple/Lavender
Brown/Copper
Red/Burgundy
Oblong
Obovate
Cuneate
Entire
Lobed
3-6 inches
3-6 inches
Bark
Light grey, shallowly furrowed and divided into flat narrow plates. Can become flakey with age.
Light Gray
Ridges
Peeling
Stem
Branch bark is light gray and smooth. Twigs are yellowish-brown to purplish brown and smooth with scattered white lenticels. Buds are are ovoid, blunt, up to 1/4" long, have imbricate scales, are reddigh-brown to brown, and are pubescent hairy near ends.
Brown/Copper
Gray/Silver
Gold/Yellow
Smooth (glabrous)
Conspicuous
Poisonous to Humans
Abdominal pain, constipation then diarrhea (occasionally bloody), depression, frequent urination, discolored urine, jaundice; acorns can obstruct the digestive tract
Gallotannins, quercitrin, and quercitin.
Seeds
Leaves
Whole Plant Traits
Tree
Native Plant
Poisonous
Rounded
Pyramidal
Spreading
Medium
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Acid (<6.0)
Neutral (6.0-8.0)
Good Drainage
Moist
Occasionally Dry
more than 60 feet
Coastal
Mountains
Piedmont
4a
4b
5b
5a
6a
6b
7a
7b
8b
8a
3a
3b
Clay
Loam (Silt)
Sand
Landscape
Drought Tolerant Garden
Edible Garden
Butterfly Garden
Pollinator Garden
Children's Garden
Nighttime Garden
Native Garden
Shade Tree
Flowering Tree
Street Tree
Drought
Deer
Heat
Salt
Dry Soil
Black Walnut
Fire
Recreational Play Area
Lawn
Meadow
Naturalized Area
Butterflies
Pollinators
Songbirds
Moths
Small Mammals
Poisonous to Humans
Problem for Horses
Messy

Quercus alba Attributes

Quercus alba: Uses (Ethnobotany)

Hardwood timber for flooring, woodwork, barrels, ships and more.

Quercus alba: Country Or Region Of Origin

South East Canada to Central & Eastern U.S.A

Quercus alba: Distribution

Found along the entire eastern United States and west into Texas

Quercus alba: Wildlife Value

Oak trees support a wide variety of Lepidopteran. You may see Imperial Moth (Eacles imperialis) larvae which have one brood per season and appear from April-October in the south. Adult Imperial Moths do not feed. Banded Hairstreak (Satyrium calanus), which have one flight from June-August everywhere but Florida where they emerge April-May. Edward's Hairstreak (Satyrium edwardsii), has one flight from May-July in the south and June-July in the north. Gray Hairstreak (Strymon melinus), has three to four flights in the south from February-November and two flights in the north from May-September. White-M Hairstreak (Parrhasius m-album) has three broods in the north from February-October. Horace’s Duskywing (Erynnis horatius) has three broods in Texas and the deep south from January-November, and two broods in the north from April-September. Juvenal’s Duskywing (Erynnis juvenalis) has one brood from April-June, appearing as early as January in Florida. The Acorns are eaten by woodpeckers, blue joys, small mammals, wild turkeys, white-tailed deer, and black bear.

Quercus alba: Edibility

Acorns (nuts) are edible after tannins are leached or boiled out

Quercus alba: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Quercus alba: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Quercus alba: Play Value

Attractive Flowers
Attracts Pollinators
Buffer
Colorful
Defines Paths
Easy to Grow
Edible fruit
Fragrance
Pieces Used in Games
Screening
Shade
Sound
Textural
Wildlife Cover/Habitat
Wildlife Food Source
Wildlife Larval Host
Wildlife Nesting
Wind Break
Wind Shimmer

Quercus alba: Fire Risk Rating

extreme flammability
high flammability
low flammability
medium flammability

Quercus alba Fruit

Quercus alba: Fruit Description

1/2-1 inch long acorns are elongated and have a shallow cup that covers 1/4 of the nut. The cup is light tan or gray with warty scales. Acorns mature the first year and can be numerous and are a light brown color. Nuts appear from September-November.

Quercus alba: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Quercus alba: Fruit Color

grass
Brown/Copper
grass
Gray/Silver

Quercus alba: Display/Harvest Time

Fall
Spring
Summer
Winter

Quercus alba: Fruit Length

< 1 inch
1-3 inches
> 3 inches

Quercus alba: Fruit Width

< 1 inch
1-3 inches
> 3 inches

Quercus alba Flowers

Quercus alba: Flower Description

Male flowers are produced as greenish-yellow catkins in pendulous clusters about 2-3½" long. Female flowers are smaller and greenish-red and are few in spikes in axils of emerging leaves. Flowers appear in April.

Quercus alba: Flower Color

filter_vintage
Gold/Yellow
filter_vintage
Green
filter_vintage
Red/Burgundy

Quercus alba: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Quercus alba: Flower Bloom Time

Winter
Spring
Summer
Fall

Quercus alba Leaves

Quercus alba: Leaf Description

4-9 inch long by 2-4 inch wide leaves have 5-9 deep, rounded and even lobes per leaf. They have a rounded tip and a wedge-shaped base. The sinuses vary in depth and some may reach near the midrib. Color is bright green with whitish undersides. The fall color is purplish-brown to reddish-brown and develops late. A few leaves may persist into winter. Leaves are alternate, simple, obovate to oblong-obovate, and cuneate. Lobes are entire and obtuse. Lower surface is glaucous beneath.

Quercus alba: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Quercus alba: Leaf Color

spa
Green
spa
White

Quercus alba: Deciduous Leaf Fall Color

spa
Brown/Copper
spa
Purple/Lavender
spa
Red/Burgundy

Quercus alba: Leaf Type

Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple

Quercus alba: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Quercus alba: Leaf Shape

Acicular
Auriculate
Cordate
Cuneate
Deltoid
Elliptical
Filiform
Lanceolate
Linear
Oblanceolate
Oblong
Obovate
Obtuse
Orbicular
Ovate
Palmasect
Palmatifid
Peltate
Pinnatifid
Pinnatisect
Reniform
Rhomboidal
Spatulate
Subcordate
Subulate

Quercus alba: Leaf Margin

Crenate
Crenulate
Dentate
Denticulate
Doubly Crenate
Doubly Dentate
Doubly Serrate
Entire
Lobed
Serrate
Sinuate
Undulate

Quercus alba: Hairs Present

No
Yes

Quercus alba: Leaf Length

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Quercus alba: Leaf Width

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Quercus alba Bark

Quercus alba: Bark Description

Light grey, shallowly furrowed and divided into flat narrow plates. Can become flakey with age.

Quercus alba: Bark Color

grass
Light Gray

Quercus alba: Surface/Attachment

Bumpy
Exfoliating
Fissured
Furrowed
Lenticels
Papery
Patchy
Peeling
Ridges
Scaly
Shaggy
Shiny
Shredding
Smooth
Spongy

Quercus alba Stem

Quercus alba: Stem Description

Branch bark is light gray and smooth. Twigs are yellowish-brown to purplish brown and smooth with scattered white lenticels. Buds are are ovoid, blunt, up to 1/4" long, have imbricate scales, are reddigh-brown to brown, and are pubescent hairy near ends.

Quercus alba: Stem Color

grass
Brown/Copper
grass
Gold/Yellow
grass
Gray/Silver

Quercus alba: Stem Is Aromatic

No
Yes

Quercus alba: Stem Surface

Corky Ridges
Covered with a powdery bloom (glaucous)
Dull
Hairy (pubescent)
Polished
Smooth (glabrous)

Quercus alba: Stem Lenticels

Conspicuous
Not Conspicuous

Quercus alba Poisonous to Humans

Quercus alba: Poison Symptoms

Abdominal pain, constipation then diarrhea (occasionally bloody), depression, frequent urination, discolored urine, jaundice; acorns can obstruct the digestive tract

Quercus alba: Poison Toxic Principle

Gallotannins, quercitrin, and quercitin.

Quercus alba: Poison Severity

High
Low
Medium

Quercus alba: Causes Contact Dermatitis

No
Yes

Quercus alba: Poison Part

Bark
Flowers
Fruits
Leaves
Roots
Sap/Juice
Seeds
Stems

Quercus alba Whole Plant Traits

Quercus alba: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Quercus alba: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Quercus alba: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Quercus alba: Growth Rate

Slow
Medium
Rapid

Quercus alba: Maintenance

Low
Medium
High

Quercus alba: Texture

Fine
Medium
Coarse

Quercus alba Cultural Conditions

Quercus alba: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Quercus alba: Soil pH

Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)

Quercus alba: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Quercus alba: Available Space To Plant

12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet

Quercus alba: NC Region

Coastal
Mountains
Piedmont

Quercus alba: USDA Plant Hardiness Zone

thermostat
3a
thermostat
3b
thermostat
4a
thermostat
4b
thermostat
5a
thermostat
5b
thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b

Quercus alba: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Quercus alba Landscape

Quercus alba: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Quercus alba: Design Feature

Accent
Barrier
Border
Flowering Tree
Foundation Planting
Hedge
Mass Planting
Screen/Privacy
Security
Shade Tree
Small groups
Small Tree
Specimen
Street Tree
Understory Tree

Quercus alba: Resistance To Challenges

Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind

Quercus alba: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Quercus alba: Attracts

Bats
Bees
Butterflies
Frogs
Hummingbirds
Moths
Pollinators
Predatory Insects
Reptiles
Small Mammals
Songbirds
Specialized Bees

Quercus alba: Problems

Allelopathic
Contact Dermatitis
Frequent Disease Problems
Frequent Insect Problems
Invasive Species
Malodorous
Messy
Poisonous to Humans
Problem for Cats
Problem for Children
Problem for Dogs
Problem for Horses
Short-lived
Spines/Thorns
Weak Wood
Weedy