Alpine Bladder-fern vs Brook-Side Alder

Cystopteris alpina compared with Alnus serrulata

Key Differences

• Alpine Bladder-fern is Near Threatened while Brook-Side Alder is Least Concern.

Taxonomic Classification

Rank	Alpine Bladder-fern	Brook-Side Alder
Kingdom same	Plantae (plantas)	Plantae (plantas)
Phylum	Tracheophyta	Magnoliophyta (Flowering Plants)
Class	Polypodiopsida (Polypodiopsida)	Magnoliopsida (Dicots)
Order	Polypodiales (Polypodiales)	Fagales (Beeches & Oaks)
Family	Cystopteridaceae	Betulaceae
Genus	Cystopteris	Alnus
Species	Cystopteris alpina	Alnus serrulata

Evolutionary Relationship

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

Conservation Status

Alpine Bladder-fern

NT — Near Threatened

Brook-Side Alder

LC — Least Concern

Physical Characteristics

Attribute	Alpine Bladder-fern	Brook-Side 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-Side Alder

Habitat

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

Range

Distributed across Canada and United States.

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-Side Alder

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