a large clump along the road
close up of the umbel

The lethal dose for a human being is 0.15 g. It causes nausea and vomiting, movement- and speech retardation; the pupils dilate, which is followed by characteristic rising paralysis of the limbs and eventually paralysis of the thoracic muscles, leading to death.


Hemlock is an annual or biennial weed widespread in Europe. It has an unpleasant smell, a hollow stem with red spots and small white blossoms. All parts of the plant are very poisonous, which is due to the alkaloid coniin.