Amanita muscaria, commonly referred to as the fly agaric, and Amanita persicina, have distinct distribution patterns.
United States: The fly agaric is widespread across the U.S., in Alaska, California, Oregon, Washington, Idaho, Montana, Colorado, Kentucky, Ohio, North Carolina, South Carolina, Alabama, Georgia, Mississippi, Florida, New Hampshire, Vermont, Michigan, Minnesota, Wisconsin, New York, Massachusetts, Connecticut, and Pennsylvania.
Canada: Canadian provinces like British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, Quebec, New Brunswick, and Nova Scotia.
Europe: Norway, Sweden, Finland, Russia (especially Siberia), Germany, France, the United Kingdom, Poland, the Czech Republic, Slovakia, Austria, Switzerland, Italy, Spain, Portugal, and several other countries.
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Asia: Asian countries such as Russia (particularly Siberia), Mongolia, China, Japan, South Korea, Nepal, Bhutan, and northern India have reported sightings.
Australia and New Zealand: has observations, especially in planted pine forests which is increasing every year.
South America: Though less common, Chile and Argentina have reported sightings.
Amanita persicina: Amanita persicina is localized primarily in the southeastern U.S. Specifically, it's found in states like Alabama, Georgia, Mississippi, Florida, and South Carolina. While Amanita muscaria showcases a vast adaptability and distribution range, Amanita persicina carves out a niche presence in specific southeastern U.S. states.