Fly Agaric vs

Amanita muscaria compared with Postia lowei

Key Differences

• Fly Agaric is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	Fly Agaric
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Basidiomycota (Club Fungi)	Basidiomycota (Club Fungi)
Class same	Agaricomycetes (Mushrooms)	Agaricomycetes (Mushrooms)
Order	Agaricales (Gilled Mushrooms)	Polyporales (Polyporales)
Family	Agaricaceae (Agarics)	Dacryobolaceae
Genus	Amanita (Amanitas)	Postia
Species	Amanita muscaria	Postia lowei

Evolutionary Relationship

Fly Agaric and share a common ancestor at the Class level: Agaricomycetes. (Mushrooms)

Conservation Status

Fly Agaric

LC — Least Concern

Trend: Stable →

NE — Not Evaluated

Physical Characteristics

Attribute	Fly Agaric
Diet	Decomposer	—
Average Lifespan	1 years	—
Average Length	20 cm	—
Average Weight	100 g	—

Habitat & Geographic Range

Fly Agaric

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Europe (4 countries), North America (United States), Oceania and the Pacific (New Zealand), and South America (Brazil, Chile, Colombia).

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Norway, Sweden, and Taiwan.

Fly Agaric

Among the most iconic and recognizable fungi on Earth, fly agaric mushrooms display striking red caps with white flecked warts across boreal forests of the Northern Hemisphere. Despite their fairy-tale appearance, they contain potent psychoactive compounds including muscimol and ibotenic acid and are moderately toxic. They form critical mycorrhizal symbioses with birch, pine, and spruce trees, exchanging mineral nutrients for carbon and playing essential roles in boreal forest nutrient cycling.

Postia lowei is a soft, white to cream-colored bracket fungus forming annual, shelf-like fruiting bodies on decaying conifer wood. It inhabits boreal and montane coniferous forests, growing on dead fallen logs and stumps. This brown-rot saprotrophic fungus decomposes the cellulose of conifer wood, leaving characteristic brown cubical rot.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden