Dogtooth violet is a commonly used name for the spring flowering plant, Erythronium dens-canis. However, there are several other names that refer to the same plant species. Some of the synonyms for dogtooth violet are adder's tongue, trout lily, spotted dogtooth violet, and fawn lily. These names hint at some of the attributes of the plant - some note its pointed leaves, others its mottled and spotted petals. Regardless of its name, the plant's strikingly beautiful flowers with nodding heads and delicate colors make it a garden favorite for brightening up springtime landscapes.