This mushroom VERY CLOSELY resembles several deadly Amanita species, such as A. verna, A. bisporigera, and A. virosa. Leucoagaricus naucinus is similar to the Amanitas in being entirely white and having free gills, an annulus, and a white spore print. It is distinguishable from the Amanitas by the lack of a volva at the base of the stipe, and by the type of annulus. Amanitas have a skirt-like annulus constricted at the top and flaring down, while L. naucinus has a collar-like annulus, constricted at the bottom and flaring up. Additionally, notice how the long-stalked buttons of L. naucinus differ from the egg-like immature stages of the Amanitas. Still, we cannot recommend eating this mushroom without confirmation from an expert.