Aesculus glabra (Ohio buckeye): Fruit
The 1- to 2-inch-long fruit is a yellow, leathery capsule with deciduous prickles, becoming pale brown and smooth as it ripens. The capsule splits open to release 1 or 2 large seeds in September to mid-October. The smooth, shiny, dark-brown, poisonous seeds resemble those of the horse chestnut and are somewhat reminiscent of the eye of a deer (hence the name, "buckeye").