 Amanita muscaria is a cosmopolitan mushroom , native to conifer and deciduous woodlands throughout the temperate and boreal regions of the Northern Hemisphere , including higher elevations of warmer latitudes in regions such as Hindu <unk> , the Mediterranean and also Central America . A recent molecular study proposes that it had an ancestral origin in the Siberian – <unk> region in the Tertiary period , before radiating outwards across Asia , Europe and North America . The season for fruiting varies in different climates : fruiting occurs in summer and autumn across most of North America , but later in autumn and early winter on the Pacific coast . This species is often found in similar locations to Boletus <unk> , and may appear in fairy rings . <unk> with pine seedlings , it has been widely transported into the southern hemisphere , including Australia , New Zealand , South Africa and South America , where it can be found in the southern Brazilian states of <unk> and Rio Grande do <unk> . 
