"Growing proudly is love and courage, wisdom and flexibility, and the dazzling light is like a million arrows waving." This Irish poem "Oh The Shamrock", which praises the inherent character of clover, has been widely circulated around the world. The verdant clover is the symbol of Ireland and Northern Ireland.

    In Irish legend, the ancient Celts living in Ireland regarded clover as a sacred object. The number of three in clover is very mysterious in Celtic belief. It is also said that in the 5th century AD, Saint Patrick, the patron saint of Ireland, once preached here with the help of clover. He compared the trinity of the Christian Son, Father and Holy Spirit to the three leaves of clover, which is convenient for local people to understand.

    There are more popular stories between Ireland and clover, which have been handed down since Queen Elizabeth I. As early as 1571, the book "Irish History" recorded various habits of "wild Irish", one of which said: "They eat clover, watercress, plant roots and other kinds of grass." From then on, the saying that "Irish people eat clover" began to appear in large numbers in later written records. Therefore, the mention of clover will remind Europeans that it is Irish food. In fact, Irish people do eat clover, but not all clovers. In the Irish's own written records, they only ate a kind of clover called wood sorrel.

    The clover first represented Ireland. It was in the Irish defense at the end of the 18th century that Irish people formed a volunteer army to resist the invasion of France and Spain. At that time, various flags, badges, medals, uniforms, ribbons, and military caps were equipped with the image of clover or the green color of clover. In the 19th century, clover, rose and thistle together became the symbol of British military uniform, representing the alliance of three countries. Then, some coins and buildings in Britain, such as Buckingham Palace, often show the image of clover.