Fly Agaric vs Gray Alder

Amanita muscaria compared with Alnus incana

Taxonomic Classification

Rank	Fly Agaric	Gray Alder
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Basidiomycota (Club Fungi)	Magnoliophyta (Flowering Plants)
Class	Agaricomycetes (Mushrooms)	Magnoliopsida (Dicots)
Order	Agaricales (Gilled Mushrooms)	Fagales (Beeches & Oaks)
Family	Agaricaceae (Agarics)	Betulaceae
Genus	Amanita (Amanitas)	Alnus
Species	Amanita muscaria	Alnus incana

Conservation Status

Fly Agaric

LC — Least Concern

Trend: Stable →

Gray Alder

LC — Least Concern

Physical Characteristics

Attribute	Fly Agaric	Gray Alder
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).

Gray Alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Widely distributed across Asia (Armenia), Europe (10 countries), and North America (United States).

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.