Henbane flowers (Hyoscyamus niger). This plant is used in herbal medicine as a sedative and painkiller. It used in the treatment of Parkinson's disease, asthma, whooping cough, motion sickness, Meniere's syndrome, paralysis and as a pre-operative medication. It is also used as an oil to relieve painful conditions such as neuralgia, dental and rheumatic pains. This plant is very poisonous. Photographed on Braunton Burrows, Devon, UK.