Agaricus campestris is a type of gilled mushroom that is also known as the field mushroom, meadow mushroom, or the horse mushroom. These synonyms describe its natural habitat, as it is commonly found growing in meadows and fields, as well as being a popular food source for horses. This particular species of mushroom is often confused with other, sometimes toxic, mushrooms, so it is important to be able to identify it properly. Agaricus campestris is best identified by its pink gills, white flesh, and smooth cap with brown scales. It has a delicate flavor and is commonly used in cuisine worldwide.