Common Fieldcap vs Common Panicgrass

Agrocybe pediades compared with Panicum capillare

Key Differences

• Common Fieldcap is Least Concern while Common Panicgrass is Not Evaluated.

Taxonomic Classification

Rank	Common Fieldcap	Common Panicgrass
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Basidiomycota (Club Fungi)	Magnoliophyta (Flowering Plants)
Class	Agaricomycetes (Mushrooms)	Liliopsida (Monocots)
Order	Agaricales (Gilled Mushrooms)	Poales (Grasses)
Family	Strophariaceae	Poaceae (Grass Family)
Genus	Agrocybe	Panicum
Species	Agrocybe pediades	Panicum capillare

Conservation Status

Common Fieldcap

LC — Least Concern

Common Panicgrass

NE — Not Evaluated

Physical Characteristics

Attribute	Common Fieldcap	Common Panicgrass
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).

Common Panicgrass

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Widely distributed across Africa (Morocco), Asia (6 countries), Europe (33 countries), North America (Canada, United States), Oceania and the Pacific (Australia), and South America (Brazil, Chile).

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.

Common Panicgrass

<em>Panicum capillare</em> is an annual grass in the family Poaceae, native to North America and now broadly naturalized across Europe, Asia, Africa, Oceania, and South America. It is recorded in Morocco, six Asian countries, thirty-three European nations, Canada, the United States, Australia, Brazil, and Chile. The species typically colonizes disturbed habitats including roadsides, agricultural fields, riverbanks, waste ground, and sandy or rocky substrates with sparse vegetation. It produces an open, highly branched panicle inflorescence that detaches at maturity and disperses as a tumbleweed, facilitating long-distance seed dispersal. This adaptation contributes to its success as a colonizer of novel environments. Conservation status has not been formally evaluated by the IUCN, consistent with its status as a widespread, common, and often weedy annual species. Biological traits including average lifespan, body measurements, and detailed dietary ecology remain poorly documented in standardized ecological databases for this annual grass species. <em>Panicum capillare</em> plays a role in ruderal plant communities, providing food for granivorous birds and insects, though it is also considered an agricultural weed in crop systems across parts of its introduced range.

Shared Countries

Both species can be found in 6 countries:

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