A poisonous plant exists within Lost Valley. When its roots are crushed and mixed with water, the resulting liquid can be coated onto various weapons, such as arrows and spears, making the weapons deadly to their victims. The crushed plants can also be used for fishing by throwing them into a small body of water. Small amounts of the plant's poison, like would be found on an arrow, is lethal to smaller creatures, but merely induces sleep in larger ones.