Erythronium albidum (white fawnlily or white trout lily) is a small herbaceous flowering plant in the lily family. It is native to eastern North America, from southern Quebec and southern Manitoba south to Georgia and Texas. The plant is mostly found in large groups on the forest floor, often in areas following ground disturbance. Its preferred growing conditions are in part sun to mostly shade and deep, moist loamy soils. It is also known as adder's tongue, dog's-tooth violet, serpent's tongue, trout lily, deer tongue, and yellow snowdrop.