Aesculus turbinata, common name Japanese horse-chestnut (Tochinoki or Tochi (トチノキ（栃の木） or トチ（栃、橡）)), is native to Japan but cultivated elsewhere.

Flowers are white to pale yellowish with red spots.

Capsules are dark brown, obovoid to pyriform.

[4][1] The seeds were traditionally eaten, after leaching, by the Jōmon people of Japan over about four millennia, until 300 AD.

[5] Today the seeds are used in Japanese cuisine to prepare "Tochimochi".