Brittle Bladderfern vs Japanese Weasel

Cystopteris tenuis compared with Mustela itatsi

Key Differences

• Brittle Bladderfern is Not Evaluated while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	Brittle Bladderfern	Japanese Weasel
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Mammalia (Mammals)
Order	Polypodiales (Polypodiales)	Carnivora (Carnivorans)
Family	Cystopteridaceae	Mustelidae (Weasels & Otters)
Genus	Cystopteris	Mustela
Species	Cystopteris tenuis	Mustela itatsi

Conservation Status

Brittle Bladderfern

NE — Not Evaluated

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Brittle Bladderfern	Japanese Weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brittle Bladderfern

Habitat

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

Range

Distributed across Canada and United States.

Japanese Weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Japan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Brittle Bladderfern

The Brittle Bladderfern (Cystopteris tenuis) is a species in the genus Cystopteris. Typically found in moist, shaded forest floors and tropical canopies.