Atropa is a genus of flowering plants in the nightshade family, known scientifically as Solanaceae. It includes several species, the most famous being Atropa belladonna, commonly known as deadly nightshade. These plants are characterized by their bell-shaped flowers and dark berries, which are toxic if ingested. Atropa belladonna has a long history of use in traditional medicine, but it is also known for its toxic properties. The plant contains alkaloids like atropine, which can affect the nervous system. Due to its toxicity, caution is advised when handling or consuming any part of the plant.