What are button mushrooms
Agaricus bisporus is usually called the common or commercial mushroom. If you’re looking at mushrooms in the store with the white cap, you’re very likely looking at varieties of A. bisporus. This species of mushroom may be sold under many different names, which may denote size. Small white versions of A. bisporus are generally referred to as button mushrooms, while larger versions may have the generic name of mushroom.