Alpine Bladder-fern vs Birch Sober

Cystopteris alpina compared with Anacampsis blattariella

Key Differences

• Alpine Bladder-fern is Near Threatened while Birch Sober is Least Concern.

Taxonomic Classification

Rank	Alpine Bladder-fern	Birch Sober
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Arthropoda (Arthropods)
Class	Polypodiopsida (Polypodiopsida)	Insecta (Insects)
Order	Polypodiales (Polypodiales)	Lepidoptera (Butterflies & Moths)
Family	Cystopteridaceae	Gelechiidae
Genus	Cystopteris	Anacampsis
Species	Cystopteris alpina	Anacampsis blattariella

Conservation Status

Alpine Bladder-fern

NT — Near Threatened

Birch Sober

LC — Least Concern

Physical Characteristics

Attribute	Alpine Bladder-fern	Birch Sober
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alpine Bladder-fern

Habitat

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

Range

Distributed across Norway and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Birch Sober

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Alpine Bladder-fern

The Alpine Bladder-fern (Cystopteris alpina) is a species in the genus Cystopteris. It is currently classified as Near Threatened on the IUCN Red List. Typically found in moist, shaded forest floors and tropical canopies. Distributed across Norway and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Birch Sober

The Birch Sober (Anacampsis blattariella) is a species in the genus Anacampsis. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden