Purple Nightshade (Atropa belladonna). Deadly parts: The entire plant, particularly its berries, roots, and leaves.Toxic toll: Don’t mess with this one—pop a handful of berries in your mouth, and you’ll physically be unable to call for help. After you lose your voice, respiratory complications, intense digestive disruption, and violent convulsions begin, the combination of which has proven fatal.Photo by Flickr user peganum
Ahmad Ali JetPlane 