Alpine Bladder-fern vs Brown eagle-ray

Cystopteris alpina compared with Aetomylaeus milvus

Key Differences

• Alpine Bladder-fern is Near Threatened while Brown eagle-ray is Endangered.

Taxonomic Classification

Rank	Alpine Bladder-fern	Brown eagle-ray
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Elasmobranchii
Order	Polypodiales (Polypodiales)	Myliobatiformes (Myliobatiformes)
Family	Cystopteridaceae	Myliobatidae
Genus	Cystopteris	Aetomylaeus
Species	Cystopteris alpina	Aetomylaeus milvus

Conservation Status

Alpine Bladder-fern

NT — Near Threatened

Brown eagle-ray

EN — Endangered

Physical Characteristics

Attribute	Alpine Bladder-fern	Brown eagle-ray
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.

Brown eagle-ray

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

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

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.

Brown eagle-ray

The Brown Eagle-ray (Aetomylaeus milvus) is a species in the genus Aetomylaeus. It is currently classified as Endangered on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.