Shamrock
Shamrocks are the young sprigs of clover or trefoil. The shamrock is a symbol of Ireland. According to a legend, Saint Patrick used it to illustrate the doctrine of the Holy Trinity. The name shamrock is  derived from Irish . This is the diminutive version of the Irish word for clover () meaning simply "little clover" or "young clover". Sometimes other three-leafed plants are called shamrocks. The shamrock can be used for its medicinal properties. It was used as a motif in Victorian days. Around March 17 (Saint Patrick's Day) small pots of shamrocks are sold. Some people wear sprigs of shamrock in a buttonhole on the holiday.