The Thistle of Larr

 The Thistle of Larr  is an item in Villagers & Heroes.

'' A strange plant grown from dark powers. It causes any who are pricked by it to go violently insane. ''

Acquisition
 * Found at Shadenor at H4, during The Blessings of Tianma quest.
 * Return it to Sapphira De'Brun.