Along with snake weed, it is one of the ingredients used to make Relicym's Balm, a potion that can cure Disease. This herb is needed for the Zogre Flesh Eaters quest, therefore it is wise to take an extra during Jungle Potion. This herb can also be obtained during the Shades of Mort'ton quest, but it is not required for the quest. Rogue's purse is one of the herbs that can be given to the children of Rantz to 'Ogre-boat' you to Feldip Hills, provided you have saved Skrach Uglogwee in the Recipe for Disaster quest.