Barn Fern vs Brook Alder

Asplenium haughtonii compared with Alnus maritima

Key Differences

• Barn Fern is Critically Endangered while Brook Alder is Endangered.

Taxonomic Classification

Rank	Barn Fern	Brook Alder
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Tracheophyta	Magnoliophyta (Flowering Plants)
Class	Polypodiopsida (Polypodiopsida)	Magnoliopsida (Dicots)
Order	Polypodiales (Polypodiales)	Fagales (Beeches & Oaks)
Family	Aspleniaceae	Betulaceae
Genus	Asplenium	Alnus
Species	Asplenium haughtonii	Alnus maritima

Evolutionary Relationship

Barn Fern and Brook Alder share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Barn Fern

CR — Critically Endangered

Brook Alder

EN — Endangered

Physical Characteristics

Attribute	Barn Fern	Brook Alder
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Barn Fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

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.

Barn Fern

The Barn Fern (Asplenium haughtonii) is a species in the genus Asplenium. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in moist, shaded forest floors and tropical canopies.

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.