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The fruit of a horse chestnut tree is the chestnut-coloured 'conker', which gave rise to the game of 'conkers' in the UK. A conker starts its life inside a prickly green casing, and here is an example as the seed case, still on the tree, has just split.
Chestnuts become mature when they naturally fall from the tree. They ripen in September-October for about two to four weeks. Autumn. Autumn painting
Picture of the fruits of a horse chestnut tree in summer. Aesculus hippocastanum, the horse chestnut, is a species of flowering plant in the maple, soapberry and lychee family Sapindaceae. It is a large, deciduous, synoecious tree. It is also called horse-chestnut, European horsechestnut, buckeye, and conker tree.
Autumn colours of the Horse Chestnut tree Aesculus hippocastanum. A vigorous growing tree, deciduous bearing spiny fruits containing brown nuts in autumn, commonly known as conkers
tree
open chestnuts lie on autumn leaves
Buckeye (horse chestnut) close-up. The image was captured during autumn season.
Chestnuts on a tree in an autumn forest
Ripening Fresh Chestnuts in autumn
Chestnut or Chestnut Fruit with leaves on the tree
London Plane tree balls and fruit in Royal Botanical Gardens - Rock Garden, Hamilton, Canada.
Two chestnuts have ripened in the empty branches of a chestnut tree. the bark has opened. the fetus is visible.
Autumn foraging trip in English woodland discovers edible sweet chestnuts
Branches of Aesculus hippocastanum with leaves and ripening spiny fruits called horse chestnuts, detail of conker large tree
Trees at natural park of glasgow scotland england UK
chestnut with spines on a tree - cross processed
Enjoying the sights and smells of the pines and flower's in the parks around Badenweiler in the Black forest, Southern Germany
Photo of chestnuts shortly after blooming, nestled in small, green, spiky shells as they grow. Capturing the early stages of development of these tree-like fruits
Chestnut tree
horse chestnut branch closeup, summer time photo
Horse chestnuts on the horse chestnut tree
Close up Horse Chestnut
Breen spiky chestnut seeds groving in a tree amidst the brown, dry leaves. Beautiful summer scenery of Latvia, Northern Europe.
Ripening Fresh Chestnuts in autumn
A European Horse Chestnut (Aesculus hippocastanum) on a tree in the UK
Chestnut tree in autumn time low angle view
The fruit of a Horse Chestnut Tree are shiny brown Chestnuts that are commonly known as 'conkers'.  They grown inside a thick fleshy casing that has sharp little spikes on the outside to protect it - this is a picture of one of them.
Young fruits (conkers) of a European Horsechestnut (Aesculus hippocastanum) begin to burst open in mid-summer in an Oxfordshire woodland. While the seeds/nuts are inedible to humans, many animals will readily eat them.
Free Images: "bestof:Branch Hole and callus, Horse Chestnut, Dumfries House.JPG en Branch hole in Horse Chestnut with callus growth Dumfries House East Ayrshire Scotland own"
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