Pasturage
Part of speech: noun
Definition: A pasture; land that is used for pasture. The grass or other vegetation eaten by livestock and found in a pasture. The right to graze livestock on a pasture.
Herbage
Part of speech: noun
Definition: Herbs collectively.Herbaceous plant growth, especially grass.The fleshy, often edible, parts of plants.The natural pasture of a land, considered as distinct from the land itself; hence, right of pasture (on another man's land).