white clover (or Trifolium repens). According to Casey, four-leaf clovers "are as rare as the five-leaf clover, which is ...

St. Patrick's Day shamrocks are usually green, but clovers can also be purple, green, or white ... and clover differ in many ways. The shamrock carries religious ties, while the four-leaf clover ...

OTAWARA, Tochigi Prefecture--A four-leaf clover is said to bring good luck. But what if it has 63 leaves? That is what Yoshiharu Watanabe accomplished, landing him an entry in Guinness World ...