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{{Citation box|text=HORSE-CHESTNUT. Turkey. The common horse-chestnut is cultivated for ornament but never for the purpose of a food supply. It is now known to be a native of Greece or the Balkan Mountains<ref>Robinson, J. ''Agr. Mass.'' 34. 1850.</ref>. Pickering<ref>Pickering, C. ''Chron. Hist. Pls.'' 892. 1879.</ref> says it was made known in 1557; Brandis<ref>Brandis, D. ''Forest Fl.'' 104. 1876.</ref>, that it was cultivated in Vienna in 1576; and Emerson<ref>Emerson, G. B. ''Trees, Shrubs Mass.'' 2:546. 1875.</ref>, that it was introduced into the gardens of France in 1615 from Constantinople. John Robinson<ref>Robinson, J. ''Letter to Dr. Sturtevant'' Oct. 13, 1881.</ref> says that it was known in England about 1580. It was introduced to northeast America, says Pickering<ref>Pickering, C. ''Chron. Hist. Pls.'' 892. 1879.</ref>, by European colonists. The seeds are bitter and in their ordinary condition inedible but have been used, says Balfour<ref>Balfour, J. H. ''Man. Bot.'' 459. 1875.</ref>, as a substitute for coffee. [[Aesculus (Sturtevant, 1919)#Aesculus hippocastanum|Sturtevant, ''Notes on edible plants'', 1919]].