The order Agaricales is a large and diverse group of fungi within the class Agaricomycetes, best known for producing gilled mushrooms. It includes many familiar genera such as Agaricus (the common button mushroom), Amanita, Lepiota, and Marasmius. Members of Agaricales play important ecological roles as decomposers, breaking down organic matter like wood and leaf litter, while others form mutualistic mycorrhizal associations with plants or act as parasites. They are globally distributed and exhibit a wide variety of fruiting body forms, ranging from classic cap-and-stem mushrooms to more unusual morphologies. The order also includes both edible and poisonous species, making it significant not only ecologically but also economically and medically.