Horse Chestnut or Aesculus Hippocastanumisalso known as Buckeye. Named for the belief that when horses eat the nuts, it relieves chest congestion, but it is, in fact, toxic to horses. It is used medicinally in topical products. In magic, it can make a powerful ingredient in money and healing spellwork. In cut form to be stored in a sealed container in a cool, dark place. 2oz.