While the shamrock mainly has religious ties, the four-leaf clover—often mistaken for the same plant—is often associated with luck. We explain why.

A four-leaf clover, extremely rare to find, is associated with St. Patrick’s Day. It turns out you’re more likely to get in a car accident that day than find one. Your odds are a lot higher ...

A four-leaf clover, extremely rare to find, is associated with St. Patrick’s Day. It turns out you’re more likely to get in a car accident that day than find one. Your odds are a lot higher ...