The four-leaf clover is an uncommon variation of the common three-leaf clover. According to superstition, such leaves bring good luck to their finders, especially if found accidentally.
It has been estimated that there are approximately 10,000 three-leaf clovers for every four-leaf clover.
According to legend, each leaflet represents something: the first is for hope, the second is for faith, the third is for love, and the fourth is for luck. Legend also holds that if a lady hangs a 4-leaf clover on her door, the next man to come in will become her husband.