Gwathlas (Sindarin for ‘shadowleaf ’) was a leafy plant whose thick, round root could be compressed to produce an oily fluid that was consumed. In Gondor, this plant was associated with the forces of the Shadow, whose sorcerers used it to fortify themselves against their rivals and improve their ability to study their master’s dark lore. It was first cultivated by the Black Númenoreans, who were taught its virtues by Sauron himself. In Gondor, possessing, extracting, or consuming gwathlas was a crime punishable by death.
Location: Eastern reaches of theWhite Mountains.
Effect: When consumed, this noxious drink sharpened the mind and gave speed to thoughts and ideas, increasing one’s Wits for two hours.