The fly agaric is instantly recognizable: it is the pretty red-capped, white-speckled ‘toadstool’ shown in traditional fairy pictures. It grows up to 15 cm (6") tall and wide. (The variety regalis may be larger still.) The red cap often turns brownish. It grows abundantly all over Europe and N. America, in Japan, and also in Australia (probably as an immigrant from the northern hemisphere) and N. Africa, its preferred habitat being woods in autumn.