Henbane is a toxic herb whose history has become inextricably linked with witchcraft. This post reviews some of the history of henbane as an herbal medicine; some of the folklore around the herb; and the relationship between herbalists, wise women and witches. It is inspired by a song, and the full moon.
Botanical & Medical History
The botanical name for Henbane is Hyoscyamus niger. It belongs to the family Solanaceae. The herb is also called Hog’s bean; its botanical name Hyoscyamus "derives from the Greek hyos and cyamos, signifying the bean of the hog, which animal is supposed to eat it with impunity."1 Henbane is a common name perhaps because the seeds were thought to be fatal to poultry.
The herb has a long, and controversial, history of use as a medicine. "Dioscorides (c. 40-90 A.D.) used it to procure sleep and allay pains... Pliny (c. 23-79 A.D.) declared it to be 'of the nature of wine and therefore offensive to the understanding'... Culpepper (1616-1654) says: Take notice, that this herb must never be taken inwardly; outwardly, an oil, ointment, or plaister of it is most admirable for the gout..." Gerard (1545-1612) states 'The leaves, the seeds and the juice, when taken internally cause an unquiet sleep, like unto the sleep of drunkenness, which continueth long and is deadly to the patient.'"2
Although the herb was left out of multiple editions of the London Pharmacopoeia, it was included in the 1809 edition; according to Baron Storch, it was useful for treating epilepsy and other nervous and convulsive diseases. Mrs. Grieve states that "it is poisonous in all its parts, and neither drying nor boiling destroys the toxic principle."3