Sego lily, one of the mariposa lilies (Calochortus nuttallii) native to the dry areas of western North America. Its long stems (18 in/46 cm) grow from corms and bear narrow leaves and large 3-petaled flowers. The white petals are marked with yellow-green, purple, or lilac, with a purple spot at the center. The Mormon settlers in Utah used the edible corms as food. The sego lily is Utah's state flower.