Dogtooth Violet, a common name for two spring flowers, the adder's tongue and the spring (or fawn) lily. They are found throughout the United States and Canada. These plants are not violets, but belong to the lily family. Each species has tapering, backward-curving flowers that resemble a dog's canine tooth. Adder's tongue has yellow flowers; the spring lily, white or purple flowers. The flowers of both species are about 1 ½ inches (4 cm) long and their stems are 6 to 12 inches (15 to 30 cm) tall.
Dogtooth violets belong to the family Liliaceae. The adder's tongue is Erythronium americanum; the spring lily, E. albidium.Dogtooth violets are spring wildflowers with bell-shaped flowers.