 Collybia cirrhata is known from temperate , boreal , and alpine or arctic habitats . The fungus is widespread in Europe , including Bulgaria , Denmark , Germany , Greece , Latvia , Scandinavia , Slovakia , Switzerland , Turkey , and the United Kingdom . The mushroom is also common in northern montane regions of North America . In Asia , the fungus has been reported in Korea , and in Hokkaido , northern Japan . It is also known from Greenland . A 2009 publication suggested that based on the known evidence , the species ' distribution may be circumboreal . 
