TIL that the Hemlock Water Dropwort is the most poisonous plant in the UK. Its poison constricts the muscles, causing death by asphyxia, which also causes a rictus like death grin. Use of this plant in Phoenician Sardinia for executions is the origin of the term "Sardonic Grin".
wildfooduk.comSubmitted by AspireAgain t3_11zroqu in todayilearned