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American Fly Agaric (Amanita muscaria var. guessowii)

Where does American Fly Agaric grow?

Amanita muscaria var. guessowii

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American Fly Agaric grows in specific habitats. Knowing where to look and when is the difference between an empty basket and a successful forage.

Where to find American Fly Agaric

Northeastern North America

Widely distributed throughout the forests of New England, the Great Lakes region, and eastern Canada.

Pacific Northwest

Less common, but has been reported in certain areas, likely introduced or co-occurring with different tree associations.

Foraging tips

  1. Tree Association. Look for it growing near birch, pine, spruce, or fir trees, as it forms mycorrhizal relationships with these species.
  2. Seasonality. Best found from late summer through late autumn, typically after periods of rainfall.

Quick Check

Substrate:
Ground, mycorrhizal with conifers and hardwoods
Fruiting:
Late summer to late autumn
Odor:
Indistinct or slightly mushroomy

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