Ohio Buckeye

Aesculus glabra Willd.




All photographs are copyrighted and are the property of E. Brunner.

Family:  Hippocastanaceae

Native or Introduced to Illinois:  native

Natural Habit in Illinois:  moist woods, bottomland woods

Leaf:  The leaves are opposite and palmately compound, with the five individual leaflets much narrowed toward the base. They are light green and smooth above, yellowish green below and hairy along the veins. When crushed they have an unpleasant odor.

Flower:  Flowers are creamy to greenish yellow, about 1-2 cm long, in large, showy, upright, branched, terminal clusters at ends of leafy branches, only those flowers near the base of the branches of a cluster are perfect and fertile -- the others are staminate; petals 4; stamens longer than petals.

Fruit:  The fruit is large, rounded, fleshy tan husk dividing into two or three parts, covered with prickles or warts and enclosing one or two round, mahogany-brown shiny nuts with a prominent spot or eye on one end.

Twig:   The twigs are reddish brown to ashy gray, upright, very stout, straight and coarse.

Bark:  The bark is ashy gray to gray-brown, breaking into irregular shallow plates covered with roughened scales.

Size/Form/Shape:   The Ohio buckeye is a medium-sized tree, reaching 50 to 60 feet in height and 18 to 20 inches in diameter with a short, limby trunk and a compact, rounded head.

County Distribution Map for Illinois:  


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