Hardy gout tubers

Hardy gout tubers are obtained during the My Arm's Big Adventure quest from Murcaily. They can not be dug up or planted in a herb patch. One is given to the player after he or she gets 60% favour, but then Murcaily gives the player a handful after My Arm goes on a rampage.

They are given to My Arm towards the end of the quest, before the final fight with the Baby Roc and Giant Roc.