ripe horse chestnut seed pod photographed with a ring flash

aesculus attached autumn autumnal background botanic brown chestnut chestnuts close closeup conker conkers deciduous fall flash flora forest fresh fruit green hippocastanum horse horsechestnut husk inside leaf macro natural nature nut nuts organic photographed plant pod revealing ring ringflash ripe sapindaceae season seasonal seed seeds shell small spiky split starting textured thorn tree twig