Cunningham's Encyclopedia of Magical Herbs - Scott Cunningham 1985
Adder’s Tongue
The Herbs
(Erythronium americanum)
Folk Names: American Adder’s Tongue, Serpent’s tongue, Adder’s Mouth, Yellow Snowdrop, Dog’s Tooth Violet
Gender: Feminine
Planet: Moon
Element: Water
Powers: Healing
Magical Uses: Soak some adder’s tongue in cold water and apply it to a wound or bruise (wrap it in a piece of cloth) until the herb grows warm. Next, bury the wet herb in a muddy place. The wound will be cured.