Scientific noun: Hyoscyamus niger L.
Family:Nightshade family - Solanaceae.
Habitat: In waste lands and among rubbish.
Alkaloids: Hyoscyamine , hyoscine and scolopamine.
Active parts: The cover of the seeds.
Uses : Parkinson disease, tremor, stomach acidity, toothache and asthma.
Toxicity: Quite toxic. It is most dangerous to eat the seeds. ( The death in a boy is produced by eating 20 or 30. While an adult takes the same risk by eating 100 or 150 ) Symptoms: Headache, drunkenness, urine retention, sleepiness. Medical treatment: Gastric lavage , emetics and heart stimulants.