“Oooh, seven! My lucky number!” “Stop! Don’t walk under that ladder!” “I could have sworn that clover had four leaves! Oh, I wish I could find one… Just once in my life…” Luck. Good luck. Bad luck.

So, the shamrock symbol is a typical clover with three leaves. St. Patrick's Day shamrocks are usually green, but clovers can also be purple, green, or white. Shamrocks have been the unofficial ...

Shamrock vs. clover: what's the difference? All shamrocks are clovers, but not all clovers are shamrocks. How can that be, you ask? Clover is the common name for plants of the genus Trifolium (from ...