Photo: Aesculus hippocastanum 12.

Fresh unripe fruit, whole and sliced. Annala, Helsinki, Finland. Picked. 2002-08-11.
Aesculus hippocastanum L. Engl.: horse chestnut, common horse chestnut, conker. Deu.: Rosskastanie, Balkan-Rosskastanie, Gemeine Rosskastanie, Gewöhnliche Rosskastanie. Suom.: hevoskastanja, balkaninhevoskastanja. Sven.: hästkastanj, vanlig hästkastanj. Ital.: ippocastano. Bot. syn.: Hippocastanum aesculus Cav., Hippocastanum vulgare Gaertn.
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Photo: Aesculus hippocastanum 12.