There are more than 35 nicknames for Poison Hemlock (conium maculatum) listed in Vickery’s Folk Flora. “Bad Man’s Oatmeal “, “Scabby Hands”, “Devil’s Blossom “, “Fools Parsley”, and “Break Your Mother’s Heart “, to name a few.

Reference – “The Witches Garden
Plants in Folklore, Magic and Traditional Medicine“
By Sandra Lawrence