Sheamarag

Sheamarag is the Scottish Gaelic word for the shamrock of power, luck, and good omens. According to lore, the shamrock of luck (a very rare five-leaved plant) must be discovered without deliberately looking for it. "When thus discovered the lucky shamrock is warmly cherished and preserved as an invincible talisman."*

*Alexander Carmichael, Carmina Gadelica: Hymns and Incantations with Illustrative Notes on Words, Rites, and Customs, Dying and Obsolete (1900)