Nut, Plant, Produce, Vegetable, Leaf, Tree, Walnut, Fruit, Pineapple, Annonaceae, Horse chestnut, Conker, Autumn, Seed pod, Nature, Spiky husk, Aesculus hippocastanum, Fall season, Brown chestnut, Close-up, Natural textures, Botanical, Tree seed, Woodland, Botany, Wild chestnut, Green husk, Spiny shell, Seasonal change, Foliage, Plant seed, Nature photography, Horticulture, Natural environment, Seed casing, gardening, autumn, production, seed, buckeye, leaf, cultivation, forest, farming, vegetation, nature, season, fruit, closeup, fall, botanical, commerce, photograph, transaction, plant part, industry, foliage
the seed pod of a horse chestnut (Aesculus hippocastanum), also known as a conker. The outer green husk is spiky, and the dark, shiny brown seed, known as a conker, is visible as the husk splits open. It rests on leaves, giving the image a natural, autumnal feel.