Henbane is a flowering plant belonging to the nightshade family, known scientifically as Hyoscyamus niger. It typically grows in temperate regions and features yellowish-green flowers with purple veins. The plant contains toxic alkaloids, which can be harmful if ingested. Historically, Henbane has been used in traditional medicine for its sedative and analgesic properties. However, due to its toxicity, it is not commonly used today. The plant is often associated with witchcraft and folklore, as it was believed to have psychoactive effects when consumed.