Alpine Bladder-fern vs brittlestar

Cystopteris alpina compared with Amphiura filiformis

Key Differences

Alpine Bladder-fern is Near Threatened while brittlestar is Least Concern.

Taxonomic Classification

Rank	Alpine Bladder-fern	brittlestar
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Echinodermata (Echinoderms)
Class	Polypodiopsida (Polypodiopsida)	Ophiuroidea (Ophiuroidea)
Order	Polypodiales (Polypodiales)	Amphilepidida (Amphilepidida)
Family	Cystopteridaceae	Amphiuridae
Genus	Cystopteris	Amphiura
Species	Cystopteris alpina	Amphiura filiformis

Conservation Status

Alpine Bladder-fern

NT — Near Threatened

brittlestar

LC — Least Concern

Physical Characteristics

Attribute	Alpine Bladder-fern	brittlestar
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.

brittlestar

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across 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.

brittlestar

The Brittlestar (Amphiura filiformis) is a species in the genus Amphiura. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.