shamrock

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shamrock

shamrock a plant with leaves composed of three leaflets. According to legend it was used by St. Patrick in explaining the doctrine of the Trinity; it is now used as the emblem of Ireland. An artificial or real shamrock leaf is customarily worn on St. Patrick's Day. The actual species of the true shamrock has long been debated, but the plants most often favored and used are the white clover ( Trifolium repens ), the black medic ( Medicago lupulina ), the wood sorrel ( Oxalis acetosella ), and a hop clover ( Trifolium minus ). All are classified in the division Magnoliophyta , class Magnoliopsida. Trifolium and Medicago are in the order Rosales, family Leguminosae; Oxalis is in the order Geraniales, family Oxalidaceae.

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"shamrock." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 23 Dec. 2009 <http://www.encyclopedia.com>.

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shamrock

The Concise Oxford Dictionary of English Etymology | 1996 | | Â© The Concise Oxford Dictionary of English Etymology 1996, originally published by Oxford University Press 1996. (Hide copyright information) Copyright

shamrock XVI. — Ir. seamrǒg, dim. of seamar clover.

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T. F. HOAD. "shamrock." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 23 Dec. 2009 <http://www.encyclopedia.com>.

T. F. HOAD. "shamrock." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (December 23, 2009). http://www.encyclopedia.com/doc/1O27-shamrock.html

T. F. HOAD. "shamrock." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved December 23, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-shamrock.html

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World Encyclopedia | 2005 | Â© World Encyclopedia 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

shamrock Plant with three-part leaves, usually taken to be Trifolium repens or T. dubium, the national emblem of Ireland. Legend tells that St Patrick used it to symbolize the Trinity. Other plants called shamrock include Oxalis acetosella and Medicago lupulina. Family Fabiaceae/Leguminosae.

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