Bladder Fern vs Common Fieldcap

Cystopteris fragilis compared with Agrocybe pediades

Key Differences

• Bladder Fern is Not Evaluated while Common Fieldcap is Least Concern.

Taxonomic Classification

Rank	Bladder Fern	Common Fieldcap
Kingdom	Plantae (식물)	Fungi (균계)
Phylum	Tracheophyta	Basidiomycota (담자균류)
Class	Polypodiopsida (고사리강)	Agaricomycetes (주름버섯강)
Order	Polypodiales (고사리목)	Agaricales (주름버섯목)
Family	Cystopteridaceae	Strophariaceae
Genus	Cystopteris	Agrocybe
Species	Cystopteris fragilis	Agrocybe pediades

Conservation Status

Bladder Fern

NE — Not Evaluated

Common Fieldcap

LC — Least Concern

Physical Characteristics

Attribute	Bladder Fern	Common Fieldcap
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bladder Fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), North America (Canada, United States), and South America (Colombia).

Common Fieldcap

Habitat

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

Range

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

Bladder Fern

The Bladder Fern (Cystopteris fragilis) is a species in the genus Cystopteris. Typically found in moist, shaded forest floors and tropical canopies.

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.

Shared Countries

Both species can be found in 5 countries:

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