Mitella diphylla is a type of wildflower that is commonly known as two-leaved miterwort. This plant species belongs to the Saxifragaceae family and is native to North America. Mitella diphylla has a number of synonyms, including Bishop's cap, two-leaved bishop's hat, mitre-wort, two-leaf miterwort, la mitra, and coffin root. The name "Bishop's cap" and "bishop's hat" come from the shape of the flower buds that resemble the hats worn by bishops in medieval times. Coffin root, on the other hand, is derived from the use of the plant in traditional medicine to treat various ailments such as toothache, coughs, and digestive disorders.