Common Fieldcap vs Common Woodrush

Agrocybe pediades compared with Luzula campestris

Taxonomic Classification

Rank	Common Fieldcap	Common Woodrush
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	Juncaceae
Genus	Agrocybe	Luzula
Species	Agrocybe pediades	Luzula campestris

Conservation Status

Common Fieldcap

LC — Least Concern

Common Woodrush

LC — Least Concern

Physical Characteristics

Attribute	Common Fieldcap	Common Woodrush
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 Woodrush

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Neotropic biogeographic realm.

Range

Widely distributed across Europe (6 countries), North America (Canada, Costa Rica, United States), Oceania and the Pacific (Australia), and South America (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 Woodrush

<em>Luzula campestris</em>, the common woodrush or field woodrush, is a small perennial plant in the family Juncaceae. It is widespread across Europe, western Asia, and northern Africa, with naturalized populations established in parts of North America and other temperate regions. The species typically colonizes short grasslands, heathlands, lawns, roadside verges, and open woodland clearings, preferring slightly acidic, well-drained soils with low nutrient levels. Plants form low, tufted rosettes of narrow, grass-like leaves fringed with long white hairs, a diagnostic feature of the genus. Flowering stems reach 5–30 cm and bear nodding, chestnut-brown flower clusters in early spring, making it one of the earlier flowering grassland plants. Biological traits such as precise lifespan, body dimensions, and detailed weight data remain poorly documented at the species level. <em>Luzula campestris</em> is an important indicator of ancient, unimproved grassland habitats in Britain and Europe, and its presence is often associated with high botanical diversity. It is assessed as Least Concern, reflecting stable populations across its native range, though localized declines may occur where intensive agriculture reduces suitable habitat.

Shared Countries

Both species can be found in 6 countries:

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