While indistinguishable to most, the shamrock and clover differ in many ways. The shamrock carries religious ties, while the four-leaf clover is considered a sign of luck due to its exceeding rarity.

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 ...