Guam

Guam leaf is the lowest level herb available. Guam leaves have three uses - they are used to make Attack potions, for making guam tar for swamp lizards and for making Guthix rest after completing the related segment of the One Small Favour quest. Many players drop these herbs to make room for better drops, but as this herb requires only a secondary ingredient abundant in many stores, and is thus great experience. Identifying a Guam leaf gives 2.5 Herblore experience, while making an attack potion gives 25 experience.

Guam leaves can be ground up with a Pestle and Mortar to create Ground Guam, an ingredient for fish food.