Atropa belladonna or Atropa bella-donna, commonly known as belladonna or deadly nightshade, is a perennial herbaceous plant in the tomato family Solanaceae, native to Europe, North Africa, Western Asia, and some parts of Canada and the United States. The foliage and berries are extremely toxic, containing tropane alkaloids. These toxins include scopolamine and hyoscyamine, which cause a bizarre delirium and hallucinations, and are also used as pharmaceutical anticholinergics.