Hyoscyamus muticus, commonly known as Egyptian henbane, is native to Sub-Saharan Africa from Mauritania to Sudan and is also found in Saudi Arabia and the eastern Mediterranean.

[1] The plant is toxic in higher doses, and deaths have been reported from eating locusts that had eaten Egyptian henbane.

[1] An overdose causes symptoms such as an extremely dry throat, constipation, a rapid pulse, blurred vision, excitement, hallucinations, delirium and death.

[4] In February 1881 the survivors of the Flatters Expedition were approached by a group of Tuaregs who sold them milk, meat and dates at a high price.

[6] The effect was to induce a burning sensation in the victims' lungs, and to cause them to rush about madly and fire off their guns.