Shingle Oak

Quercus imbricaria Michx.



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Family:  Fagaceae

Native or Introduced to Illinois:  native

Natural Habit in Illinois:   upland woods; dry exposed sandstone cliffs; moist soils along streams

Leaf:  The leaves of the shingle oak are regular  shaped and oblong.  They are not lobed, and in this respect differ from all the other native oaks.  They have a wavy margin, are leathery in texture, dark shiny green above and thick velvety underneath.  Leaves are bristle-tipped, 4 to 6 inches long.

Flower:  Species has pistillate flowers with few in a cluster.

Fruit:  The fruit is a nearly round acorn, about 1/2 inch long and covered about halfway with a shallow, turban-shaped cup.

Twig/Bark:  The rather thin bark is divided by shallow fissures into broad ridges of a dark brown color.

Size/Form/Shape:   The shingle oak is a small to medium sized tree with a rather broad,rounded crown.  When growing in the open it has a wide spread. 

County Distribution Map for Illinois:  


Sources for the Sullivan Middle School Tree Identification Guide were obtained though the use of the following sites: