Cotton Thistle vs Fly Agaric

Onopordum acanthium compared with Amanita muscaria

Key Differences

• Cotton Thistle is Endangered while Fly Agaric is Least Concern.

Taxonomic Classification

Rank	Cotton Thistle	Fly Agaric
Kingdom	Plantae (Plants)	Fungi (Fungi)
Phylum	Magnoliophyta (Flowering Plants)	Basidiomycota (Club Fungi)
Class	Magnoliopsida (Dicots)	Agaricomycetes (Mushrooms)
Order	Asterales (Daisies & Sunflowers)	Agaricales (Gilled Mushrooms)
Family	Asteraceae (Daisy Family)	Agaricaceae (Agarics)
Genus	Onopordum	Amanita (Amanitas)
Species	Onopordum acanthium	Amanita muscaria

Conservation Status

Cotton Thistle

EN — Endangered

Fly Agaric

LC — Least Concern

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

Cotton Thistle

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 10 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Georgia, India, Japan), Europe (22 countries), North America (Canada, United States), Oceania and the Pacific (Australia, New Zealand), and South America (Argentina, Brazil, Chile). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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).

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.

Shared Countries

Both species can be found in 7 countries:

🇧🇷 Brazil 🇨🇱 Chile 🇩🇰 Denmark 🇳🇿 New Zealand 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States