Genus Aesculus, commonly known as horse chestnuts or buckeyes, encompasses a variety of trees and shrubs native to North America and Eurasia. The genus was named after Aesculapius, the Greek god of medicine, due to its perceived medicinal properties. Some synonyms for Aesculus include chestnut, buckeye, conker, and horse-chestnut. Aesculus species have been used for traditional medicine, as food sources for wildlife, and as ornamental plants in landscaping. These plants are known for their showy flowers and distinctive spiny seed pods, which are used for arts and crafts. The most well-known Aesculus species are the red buckeye and the Ohio buckeye, which are both native to the eastern United States.