Ohio Buckeye
Aesculus glabra

Location in Ontario

Ohio Buckeye is a rare Carolinian Tree. It is found only on Walpole Island in Lake St. Clair. It grows on moist sandy soil and along river valleys.

Ohio Buckeye has interesting fan shaped leaves.

Genus Aesculus
This genus includes Buckeyes and Horse Chestnuts. The leaves are opposite and palmately compound, often very large in size. Trees are monoecious with perfect flowers. The flowers are showy, with four or five petals that occur in clusters. The fruit is a capsule with one to three seeds. All parts are moderately toxic including the seeds. Only Ohio Buckeye grows naturally in Ontario.

In the Landscape
Ohio Buckeye is a small tree that grows up to 15 metres, and lives to 80 years or more. It makes an interesting lawn specimen with its unusual bark markings, fan-shaped leaves, beautiful flowers and large (but poisonous) nuts.

TREE FACT: The fruit resembles deer eyes, hence the name "Buck-eye".

Ohio Buckeye in flower, University of Guelph Arboretum

Ohio Buckeye has leaves that are "palmately compound" with 5-7 leaflets in a fan shape. Leaves turn yellow in the fall.
The bark is gray with scaly plates.
Ohio Buckeye is monoecious with perfect flowers. The flowers appear in June with the leaves. They are pale, greenish yellow and shaped like narrow bells in an elongated cluster. The flowers have an unpleasant smell. Flowers are pollinated by Hummingbirds and bees.
A single nut is found in a brownish-green capsule covered with blunt spines. The capsules divide into three segments. The nuts are smooth, shiny and reddish brown and mature in September. Ohio Buckeye produces yearly seeds after 8 years of growth.
Ohio Buckeye is sometimes called "Fetid Buckeye" due to an unpleasant odour produced when the bark or twigs are cut. Most parts of the tree, including the seeds, are toxic.

The wood is pale and light. The wood is easy to shape, and resists splitting, making it favoured for carving. 
Specific gravity: 0.33
Janka Hardness: 350 lb
Wood Comparison Chart

Early spring flowers, St. Williams Nursery and Ecology Centre 

Link to United States Forest Service Silvics Manual for Ohio Buckeye.