Common Fieldcap vs Grayling

Agrocybe pediades compared with Hipparchia semele

Key Differences

• Common Fieldcap is Least Concern while Grayling is Endangered.

Taxonomic Classification

Rank	Common Fieldcap	Grayling
Kingdom	Fungi (菌界)	Animalia (動物)
Phylum	Basidiomycota (担子菌門)	Arthropoda (節足動物)
Class	Agaricomycetes (真正担子菌綱)	Insecta (昆虫)
Order	Agaricales (ハラタケ目)	Lepidoptera (チョウ目)
Family	Strophariaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Agrocybe	Hipparchia
Species	Agrocybe pediades	Hipparchia semele

Conservation Status

Common Fieldcap

LC — Least Concern

Grayling

EN — Endangered

Physical Characteristics

Attribute	Common Fieldcap	Grayling
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).

Grayling

Habitat

Inhabits temperate broadleaf and mixed forests and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (37 countries). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Grayling

グレイリング（Hipparchia semele）はIUCNレッドリストで絶滅危惧種（EN）に分類されています。野生個体群が著しく減少しており、生存への継続的な脅威により絶滅リスクが高い状況です。

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden