Also called conker tree.

Despite its main common name, not associated with 🌰︎ chestnut / chinkapin  genus Castanea in beech / oak  family Fagaceae.   Instead, …

Part of 🌰︎ buckeye / 🐎︎ 🌰︎ horse chestnut  genus Aesculus in soapberry  family Sapindaceae in cashew / 🌰︎ chestnut / 🍊︎ citrus / 🍁︎ maple  order Sapindales.

Native to the eastern Mediterranean.   Invasive > 🇺🇸 USA   Widely planted as a shade tree.   🗺 Map by county (🇺🇸 USA-48) (color key).

Uses by native peoples
(Ethnobotany database)
  Seeds slightly ☠︎ poisonous[?] to 👥︎ humans (all parts of plant).   Other sources say seeds are slightly ☠︎ toxic to 🐎︎ horses and 👥︎ humans.

Learn more about 🐎︎ 🌰︎ horse chestnut Aesculus hippocastanum

🔍︎ 🔍︎ images Discover Life Encyclopedia of Life Michigan Flora Minnesota Wildflowers Missouri Botanical Garden NRCS PLANTS db Wikipedia