single brown fruit and spikey capsule of the aesculus hippocastanum, the horse chestnut or buckey.

aesculus also america autumn avenues background blue branches brown buckeye called capsule chestnut close colorful conker copy deciduous europe european fall family flowering foilage fruits german glabra growing hermaphroditicflowered hippocastanum horse horsechestnut horseshoe large left like lychee nut park parks plant sapindaceae season seeds side single sky soapberry sometimes space spanish species specific spikey stout synoecious tree