February 26, 2026
TREACLE-MUSTARD
The names of French Mustard, Treacle-Mustard, and Treacle Worm-seed were given to the Erysimum cheiranthoides, the two last because, in mediæval times, the seed of this plant formed one of the seventy-three ingredients of the far-famed “Venice treacle,” a noted antidote to all poisons, believed to cure “all those that were bitten or stung of venomous beastes, or had drunk poisons, or were infected with the pestilence.” The origin of this counter-poison was the famous Mithridaticum, a preparation invented by Mithridates, king of Pontus. Andromachus added to this comparatively simple compound other ingredients, and especially vipers; changing, on that account, the name to Theriaca (from the Greek therion, a small animal). Dr. Prior tells us that this remedy, which was known in England originally as Triacle, was the source of many popular tales of sorcerers eating poison, and was retained in the London Pharmacopœia till about a century ago.