Alpine Bladder-fern vs Red-billed Duck

Cystopteris alpina compared with Anas erythrorhyncha

Key Differences

• Alpine Bladder-fern is Near Threatened while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Alpine Bladder-fern	Red-billed Duck
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Aves (Birds)
Order	Polypodiales (Polypodiales)	Anseriformes (Anseriformes)
Family	Cystopteridaceae	Anatidae
Genus	Cystopteris	Anas
Species	Cystopteris alpina	Anas erythrorhyncha

Conservation Status

Alpine Bladder-fern

NT — Near Threatened

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Alpine Bladder-fern	Red-billed Duck
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.

Red-billed Duck

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (6 countries) and South America (Ecuador).

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.

Red-billed Duck

Red-billed Duck (Anas erythrorhyncha) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway