Saxifraga

Saxifraga is the largest genus in the family Saxifragaceae, containing about 473 species of holarcticperennial plants, known as saxifrages or rockfoils. The Latin word saxifraga means literally "stone-breaker", from Latin ("rock" or "stone") + ("to break"). It is usually thought to indicate a medicinal use for treatment of urinary calculi (known as kidney or bladder stones), rather than breaking rocks apart.