Common Fieldcap vs Fly Agaric

Agrocybe pediades compared with Amanita muscaria

Taxonomic Classification

Rank	Common Fieldcap	Fly Agaric
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Basidiomycota (Club Fungi)	Basidiomycota (Club Fungi)
Class same	Agaricomycetes (Mushrooms)	Agaricomycetes (Mushrooms)
Order same	Agaricales (Gilled Mushrooms)	Agaricales (Gilled Mushrooms)
Family	Strophariaceae	Agaricaceae (Agarics)
Genus	Agrocybe	Amanita (Amanitas)
Species	Agrocybe pediades	Amanita muscaria

Evolutionary Relationship

Common Fieldcap and Fly Agaric share a common ancestor at the Order level: Agaricales. (Gilled Mushrooms)

Conservation Status

Common Fieldcap

LC — Least Concern

Fly Agaric

LC — Least Concern

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

Common Fieldcap

Habitat

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

Range

Found across Europe (5 countries) and North America (United States).

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).

Common Fieldcap

The Common Fieldcap (<em>Agrocybe pediades</em>) is a saprotrophic fungus belonging to the genus Agrocybe within the family Strophariaceae. It typically produces small, tan to pale brown cap-shaped fruiting bodies and is often found growing in clusters or scattered on lawns, grassy areas, forest floors, decomposing wood, and soil-rich ecosystems. The species typically inhabits forest floors, decomposing wood, and soil ecosystems, obtaining nutrients by breaking down dead organic matter. Its geographic range includes several European countries — Belgium, Denmark, Norway, Portugal, and Sweden — as well as the United States in North America. <em>Agrocybe pediades</em> is assessed as Least Concern on the IUCN Red List, reflecting its broad distribution and apparent stability. Biological traits of this species, including specific data on fruiting body size, lifespan, and ecological preferences, remain poorly documented in the scientific literature. Like other members of its genus, it typically fruits during warmer months and often appears after rainfall in nutrient-rich grassland and woodland habitats.

Fly Agaric

A amanita-das-moscas (Amanita muscaria) é um dos fungos mais icônicos e reconhecíveis da Terra, exibindo chapéus vermelhos marcantes com verrugas brancas nos bosques boreais do hemisfério norte. Apesar de sua aparência de conto de fadas, contém potentes compostos psicoativos como muscimol e ácido iboténico, sendo moderadamente tóxico. Forma simbioses micorrízicas essenciais com bétulas, pinheiros e abetos, trocando nutrientes minerais por carbono e desempenhando papéis fundamentais na ciclagem de nutrientes nas florestas boreais.

Shared Countries

Both species can be found in 5 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden 🇺🇸 United States