Four poisonous plants: crowfoot (Ranunculus alpestris), fly agaric fungus (Amanita muscaria), foxglove (Digitalis purpurea) and hellebore (Helleborus niger) Coloured engraving by J. Johnstone.

Licence: Public Domain Mark

Credit: Four poisonous plants: crowfoot (Ranunculus alpestris), fly agaric fungus (Amanita muscaria), foxglove (Digitalis purpurea) and hellebore (Helleborus niger) Coloured engraving by J. Johnstone. Wellcome Collection. Source: Wellcome Collection.