Brittle Bladderfern vs Brook Floater

Cystopteris tenuis compared with Alasmidonta varicosa

Key Differences

• Brittle Bladderfern is Not Evaluated while Brook Floater is Vulnerable.

Taxonomic Classification

Rank	Brittle Bladderfern	Brook Floater
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Mollusca (Mollusks)
Class	Polypodiopsida (Polypodiopsida)	Bivalvia (Bivalvia)
Order	Polypodiales (Polypodiales)	Unionida (Unionida)
Family	Cystopteridaceae	Unionidae
Genus	Cystopteris	Alasmidonta
Species	Cystopteris tenuis	Alasmidonta varicosa

Conservation Status

Brittle Bladderfern

NE — Not Evaluated

Brook Floater

VU — Vulnerable

Physical Characteristics

Attribute	Brittle Bladderfern	Brook Floater
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.

Brook Floater

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Brittle Bladderfern

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

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States