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American Adder’s Tongue (Erythronium americanum), better known today as yellow trout lily, is a spring woodland wildflower native to eastern North America. It is unrelated to the European adder’s tongue fern.
Identification
Trout lily forms mottled green-and-brown basal leaves and nodding yellow flowers with recurved petals. It grows from a small underground corm and often forms extensive colonies in rich deciduous woods.
Traditional Use
Historical North American references describe the plant in topical and internal folk preparations, including uses associated with wounds, swelling, feverish conditions, and gastrointestinal complaints. Documentation varies by source and region.
Food History
The corm has sometimes been described historically as edible after preparation, but this is not a plant to treat casually as a modern wild food because gastrointestinal upset can occur and populations may be ecologically sensitive.
Research Context
There is little modern human clinical research supporting medicinal applications. Its strongest contemporary value is botanical, ecological, and ethnobotanical.
Safety
Large or repeated internal use is not well characterized and may cause digestive irritation. Wild populations should be harvested cautiously, if at all, because colonies can take years to mature and reproduce.
Folklore & Seasonal Meaning
Trout lily is one of the classic spring ephemerals, emerging before the forest canopy closes. Its mottled leaves inspired the “trout” name, while the flower’s shape and older herb-lore produced the adder’s-tongue name.
Educational information only.