Alpine Bladder-fern vs Brook Alder

Cystopteris alpina compared with Alnus maritima

Key Differences

• Alpine Bladder-fern is Near Threatened while Brook Alder is Endangered.

Taxonomic Classification

Rank	Alpine Bladder-fern	Brook Alder
Kingdom same	Plantae (растения)	Plantae (растения)
Phylum	Tracheophyta	Magnoliophyta (магнолиофиты)
Class	Polypodiopsida (папоротниковые)	Magnoliopsida (Dicots)
Order	Polypodiales (многоножковые)	Fagales (букоцветные)
Family	Cystopteridaceae	Betulaceae
Genus	Cystopteris	Alnus
Species	Cystopteris alpina	Alnus maritima

Evolutionary Relationship

Alpine Bladder-fern and Brook Alder share a common ancestor at the Kingdom level: Plantae. (растения)

Conservation Status

Alpine Bladder-fern

NT — Near Threatened

Brook Alder

EN — Endangered

Physical Characteristics

Attribute	Alpine Bladder-fern	Brook Alder
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.

Brook Alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Belgium, France, Netherlands, and United Kingdom. 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.

Brook Alder

The Brook Alder (Alnus maritima) is a species in the genus Alnus. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.