Aesculus hippocastanum, the horse chestnut, is a species of flowering plant in the soapberry and lychee family Sapindaceae. It is a large deciduous, synoecious tree. It is also called horse-chestnut, European horsechestnut, buckeye, and conker tree. It is sometimes called Spanish chestnut. Learn more
You can help scientists understand how climate change is impacting this species by using the phenophase guide below to observe its lifecycle in Nature's Notebook.