What is a buckeye?

The term "buckeye" refers to a few different things, primarily:

• The Ohio buckeye tree ( Aesculus glabra): This is the most commonly associated meaning. It's a deciduous tree native to the eastern and central United States. It's known for its distinctive, shiny brown nuts, which are roughly spherical and have a lighter, paler area resembling an "eye" – hence the name "buckeye." These nuts are toxic if ingested. The tree itself has palmate leaves (leaves with multiple leaflets radiating from a single point) and produces showy white or yellowish-green flowers in spring. The wood is relatively soft and is sometimes used for making small items.

• The nuts themselves: The shiny, brown seeds are often referred to as buckeyes. They're popular as keepsakes and good luck charms, particularly in Ohio, where the tree is the state tree. However, it's important to remember that they are poisonous.

• Other Aesculus species: The term "buckeye" is also sometimes used more broadly to refer to other trees in the Aesculus genus, such as the red buckeye (Aesculus pavia) and the horse chestnut (Aesculus hippocastanum). These trees are similar in appearance to the Ohio buckeye but have slightly different characteristics. Their nuts are also generally considered toxic.

In summary: When someone says "buckeye," they're usually referring to the Ohio buckeye tree or its distinctive nuts. While visually appealing, it's crucial to remember that the nuts are poisonous and should not be eaten. The tree itself, however, is a valuable part of the eastern North American landscape.