Fly Agaric vs Sweetgrass Hydnellum

Amanita muscaria compared with Hydnellum suaveolens

Key Differences

Fly Agaric is Least Concern while Sweetgrass Hydnellum is Extinct.

Taxonomic Classification

Rank	Fly Agaric	Sweetgrass Hydnellum
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Basidiomycota (Club Fungi)	Basidiomycota (Club Fungi)
Class same	Agaricomycetes (Mushrooms)	Agaricomycetes (Mushrooms)
Order	Agaricales (Gilled Mushrooms)	Thelephorales (Thelephorales)
Family	Agaricaceae (Agarics)	Bankeraceae
Genus	Amanita (Amanitas)	Hydnellum
Species	Amanita muscaria	Hydnellum suaveolens

Evolutionary Relationship

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

View Class: Agaricomycetes

Conservation Status

Fly Agaric

LC — Least Concern

Trend: Stable →

Sweetgrass Hydnellum

EX — Extinct

Physical Characteristics

Attribute	Fly Agaric	Sweetgrass Hydnellum
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).

Sweetgrass Hydnellum

Habitat

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

Range

Distributed across Belgium, Norway, Sweden, and 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.