Common Fieldcap vs Mudworm

Agrocybe pediades compared with Aporrectodea limicola

Key Differences

Common Fieldcap is Least Concern while Mudworm is Not Evaluated.

Taxonomic Classification

Rank	Common Fieldcap	Mudworm
Kingdom	Fungi (菌界)	Animalia (動物)
Phylum	Basidiomycota (担子菌門)	Annelida (環形動物)
Class	Agaricomycetes (真正担子菌綱)	Clitellata (環帯類)
Order	Agaricales (ハラタケ目)	Crassiclitellata (Crassiclitellata)
Family	Strophariaceae	Lumbricidae
Genus	Agrocybe	Aporrectodea
Species	Agrocybe pediades	Aporrectodea limicola

Conservation Status

Common Fieldcap

LC — Least Concern

Mudworm

NE — Not Evaluated

Physical Characteristics

Attribute	Common Fieldcap	Mudworm
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

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).

Mudworm

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Norway, Sweden, and United States.

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.