The shamrock, a symbol of Ireland, is a young clover often associated with Saint Patrick. Legend states that he used the shamrock's three leaves to explain the Christian Holy Trinity. The name "shamrock" itself derives from the Irish word "seamróg," meaning "young clover."
Following the partition of Ireland in 1921, the shamrock continued to hold significance for both Northern and Southern Irish soldiers in the British Army. This tradition, initiated by Queen Victoria, honors the bravery of Irish soldiers in the Boer War.
Starting in 1969, a tradition was established of presenting the President of the United States with a bowl of shamrocks in a special Waterford Crystal bowl, featuring a shamrock design. This gesture, signifying goodwill between Ireland and the U.S., takes place annually on St. Patrick's Day.
In 1985, Ireland won a legal battle in the German Supreme Court, securing their trademark rights to the shamrock as a national symbol. This victory followed an initial loss and involved high-level representation, including then-Taoiseach Charles Haughey.
In 1988, E. Charles Nelson, Director of the Irish National Botanic Gardens, conducted a botanical survey to determine the plant species commonly considered "shamrock" in Ireland.