Mr T. C. (55 +) of Meelick, Co. Clare, told me (2 July 1998) that an old man living up the road from him had a cure for jaundice. He would take a small sliver of the inner bark from barberry (Berberis vulgaris) and boil it in milk. This was given to the sufferer to drink and ‘as soon as it hit the stomach, just as it was all drank’ it caused fairly violent emesis, but ‘the jaundice would be gone’ [Clonlara, Co. Clare, June 2002].

Image: cultivated, Real Jardín Botánico, Madrid, Spain, August 2021.