Fly Agaric vs Strict-headed Hawkweed

Amanita muscaria compared with Hieracium severiceps

Key Differences

Fly Agaric is Least Concern while Strict-headed Hawkweed is Not Evaluated.

Taxonomic Classification

Rank	Fly Agaric	Strict-headed Hawkweed
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Basidiomycota (Club Fungi)	Magnoliophyta (Flowering Plants)
Class	Agaricomycetes (Mushrooms)	Magnoliopsida (Dicots)
Order	Agaricales (Gilled Mushrooms)	Asterales (Daisies & Sunflowers)
Family	Agaricaceae (Agarics)	Asteraceae (Daisy Family)
Genus	Amanita (Amanitas)	Hieracium
Species	Amanita muscaria	Hieracium severiceps

Conservation Status

Fly Agaric

LC — Least Concern

Trend: Stable →

Strict-headed Hawkweed

NE — Not Evaluated

Physical Characteristics

Attribute	Fly Agaric	Strict-headed Hawkweed
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).

Strict-headed Hawkweed

Habitat

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

Range

Found in Denmark.

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.