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Quercus

Common Name(s):

Phonetic Spelling
KWER-kus
This plant has low severity poison characteristics.
See below
Description

Oaks come in sizes from shrubs to large trees and can be evergreen or deciduous. There are at least 450 species within the genus which is in the beech family. Many are native to North America but many species are found in Europe and Asia. They can be ornamental or lumber trees and many provide wildlife value.

The alternate, simple leaves vary greatly in shape depending on the species and margins can be lobed, toothed or smooth. Some trees display colorful leaves in the fall and many hold onto their leaves into winter. The separate male and female flowers are borne in catkins and clusters in spring and the fruit is a nut called an acorn that usually has a cap. 

Oaks can be found in wet to dry sites, in mountains and the coastal areas, in fact just about anywhere you live there is an oak suitable for you. 

Cultivars / Varieties:
Tags:
#shade tree#poisonous#tree#NC native#ornamental
 
Cultivars / Varieties:
Tags:
#shade tree#poisonous#tree#NC native#ornamental
  • Attributes:
    Genus:
    Quercus
    Family:
    Fagaceae
    Life Cycle:
    Woody
    Recommended Propagation Strategy:
    Seed
    Country Or Region Of Origin:
    Temp. Northern Hemisphere to Malesia and Colombia
    Distribution:
    Throughout and cultivated
    Wildlife Value:
    Acorns provide food to birds and mammals. The tree provides shelter to birds and mammals. They are host plants to moths and butterflies.
    Play Value:
    Wildlife Cover/Habitat
    Wildlife Food Source
    Edibility:
    Acorns (nuts) are edible after tannins are leached or boiled out.
  • Whole Plant Traits:
    Plant Type:
    Edible
    Native Plant
    Poisonous
    Tree
    Leaf Characteristics:
    Broadleaf Evergreen
    Deciduous
    Semi-evergreen
    Habit/Form:
    Erect
    Maintenance:
    Medium
  • Cultural Conditions:
    Light:
    Full sun (6 or more hours of direct sunlight a day)
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    NC Region:
    Coastal
    Mountains
    Piedmont
  • Fruit:
    Fruit Color:
    Brown/Copper
    Green
    Display/Harvest Time:
    Fall
    Fruit Type:
    Nut
    Fruit Description:
    Acorns vary in size and shape depending on the species.
  • Flowers:
    Flower Inflorescence:
    Catkin
    Flower Bloom Time:
    Spring
    Flower Description:
    Pollen flowers in drooping, elongated clusters.
  • Leaves:
    Leaf Characteristics:
    Broadleaf Evergreen
    Deciduous
    Semi-evergreen
    Leaf Color:
    Green
    Leaf Feel:
    Glossy
    Deciduous Leaf Fall Color:
    Brown/Copper
    Gold/Yellow
    Orange
    Red/Burgundy
    Leaf Type:
    Simple
    Leaf Arrangement:
    Alternate
    Leaf Margin:
    Entire
    Lobed
    Serrate
    Hairs Present:
    No
    Leaf Description:
    Leaves are simple and alternate. The shape and size vary as to the species. Margins can be lobed, toothed or smooth. Fall color varies from none to reds, yellows or orange.
  • Bark:
    Bark Color:
    Black
    Dark Gray
    Surface/Attachment:
    Furrowed
    Scaly
    Bark Description:
    The bark is gray and scaly or blackish and furrowed.
  • Stem:
    Stem Color:
    Brown/Copper
    Gray/Silver
    Stem Is Aromatic:
    No
    Stem Bud Terminal:
    Cluster of terminal buds
    Stem Description:
    Twigs are slender with a star-shaped pith.
  • Landscape:
    Landscape Location:
    Lawn
    Naturalized Area
    Woodland
    Design Feature:
    Shade Tree
    Specimen
    Street Tree
    Attracts:
    Small Mammals
    Songbirds
  • Poisonous to Humans:
    Poison Severity:
    Low
    Poison Symptoms:
    Stomach pain, constipation and later bloody diarrhea, excessive thirst and urination if uncooked leaves or fruit are eaten.
    Poison Toxic Principle:
    Gallotannins, quercitrin, and quercitin
    Causes Contact Dermatitis:
    No
    Poison Part:
    Fruits
    Leaves