Bladder Fern vs Caucasian Birch Mouse

Cystopteris fragilis compared with Sicista caucasica

Key Differences

• Bladder Fern is Not Evaluated while Caucasian Birch Mouse is Near Threatened.

Taxonomic Classification

Rank	Bladder Fern	Caucasian Birch Mouse
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Mammalia (Mammals)
Order	Polypodiales (Polypodiales)	Rodentia (Rodents)
Family	Cystopteridaceae	Dipodidae
Genus	Cystopteris	Sicista
Species	Cystopteris fragilis	Sicista caucasica

Conservation Status

Bladder Fern

NE — Not Evaluated

Caucasian Birch Mouse

NT — Near Threatened

Physical Characteristics

Attribute	Bladder Fern	Caucasian Birch Mouse
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).

Caucasian Birch Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Bladder Fern

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

Caucasian Birch Mouse

The Caucasian Birch Mouse (Sicista caucasica) is a species in the genus Sicista. It is currently classified as Near Threatened on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.