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Chinese Cork Oak Quercus variabilis

Other Common Name(s):

Phonetic Spelling
KWER-kus var-ee-AH-bil-iss
Description

Oriental Cork Oak is a medium to large tree from Asia with thick, corky bark and chestnut type leaves. It is quite ornamental in appearance. It prefers moist, well-drained clay to sandy loam soils and full sun but will tolerate some shade. Oriental Oak is rarely grown in the US but can be used as a shade, street or ornamental tree.

See this plant in the following landscape:
Cultivars / Varieties:
Tags:
#hardy#sun#deciduous#shade tree#drought tolerant#wildlife plant#moths#street tree#asian#deer resistant#acorns#nighttime garden#oak tree#larval host plant#butterfly friendly#pollinator garden#problem for horses#moth larva#banded hairstreak butterfly#gray hairstreak butterfly#imperial moth#juvenal’s duskywing butterfly#edward’s hairstreak butterfly#white-m hairstreak butterfly#horace’s duskywing butterfly
 
Cultivars / Varieties:
Tags:
#hardy#sun#deciduous#shade tree#drought tolerant#wildlife plant#moths#street tree#asian#deer resistant#acorns#nighttime garden#oak tree#larval host plant#butterfly friendly#pollinator garden#problem for horses#moth larva#banded hairstreak butterfly#gray hairstreak butterfly#imperial moth#juvenal’s duskywing butterfly#edward’s hairstreak butterfly#white-m hairstreak butterfly#horace’s duskywing butterfly
  • Attributes:
    Genus:
    Quercus
    Species:
    variabilis
    Family:
    Fagaceae
    Uses (Ethnobotany):
    Bark can be used for cork production
    Life Cycle:
    Woody
    Recommended Propagation Strategy:
    Seed
    Country Or Region Of Origin:
    Asia
    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. Mildly resistant to deer damage.
    Edibility:
    Acorns can be eaten after the tannin is leached or boiled out.
    Dimensions:
    Height: 60 ft. 0 in. - 80 ft. 0 in.
    Width: 60 ft. 0 in. - 75 ft. 0 in.
  • Whole Plant Traits:
    Plant Type:
    Poisonous
    Tree
    Woody Plant Leaf Characteristics:
    Deciduous
    Habit/Form:
    Erect
    Open
    Growth Rate:
    Slow
    Maintenance:
    Medium
    Texture:
    Medium
  • Cultural Conditions:
    Light:
    Full sun (6 or more hours of direct sunlight a day)
    Soil Texture:
    Clay
    Loam (Silt)
    Sand
    Soil Drainage:
    Good Drainage
    Moist
    Occasionally Dry
    NC Region:
    Coastal
    Mountains
    Piedmont
    USDA Plant Hardiness Zone:
    5b, 5a, 6b, 6a, 7b, 7a, 8b, 8a
  • Fruit:
    Fruit Color:
    Brown/Copper
    Display/Harvest Time:
    Fall
    Fruit Type:
    Nut
    Fruit Length:
    < 1 inch
    Fruit Width:
    < 1 inch
    Fruit Description:
    The 5/8 inch brown acorn is round and two-thirds enclosed in the cup, which is densely covered in soft 'mossy' bristles. Matures in 2 years.
  • Flowers:
    Flower Inflorescence:
    Catkin
    Insignificant
    Flower Bloom Time:
    Spring
    Flower Description:
    Male flowers appear as drooping catkins, female flowers in clusters.
  • Leaves:
    Woody Plant Leaf Characteristics:
    Deciduous
    Leaf Color:
    Green
    White
    Leaf Type:
    Simple
    Leaf Arrangement:
    Opposite
    Leaf Shape:
    Lanceolate
    Ovate
    Leaf Margin:
    Serrate
    Hairs Present:
    Yes
    Leaf Length:
    > 6 inches
    Leaf Width:
    1-3 inches
    Leaf Description:
    The 6-inch leaves are elongate with serrate margin and white pubescence on the underside. Each leaf has 13-18 pairs of parallel side veins each of which ends at the leaf margin in a tiny bristle-like tooth. Young trees hold their leaves into winter.
  • Bark:
    Bark Color:
    Light Gray
    Surface/Attachment:
    Ridges
    Bark Description:
    The yellowish-gray bark is thick and corky with deep fissures and marked by sinuous ridges
  • Stem:
    Stem Color:
    Brown/Copper
    Gray/Silver
    Green
    Stem Is Aromatic:
    No
    Stem Bud Terminal:
    Cluster of terminal buds
    Stem Cross Section:
    Round
    Stem Surface:
    Smooth (glabrous)
    Stem Description:
    Twigs are olive-brown to pale brown, almost hairless, somewhat shiny, becoming grey-brown with age.
  • Landscape:
    Landscape Location:
    Lawn
    Woodland
    Landscape Theme:
    Butterfly Garden
    Nighttime Garden
    Pollinator Garden
    Design Feature:
    Shade Tree
    Specimen
    Street Tree
    Attracts:
    Butterflies
    Moths
    Pollinators
    Resistance To Challenges:
    Deer
    Drought
    Problems:
    Problem for Horses