Birch Polypore vs Brook Alder

Fomitopsis betulina compared with Alnus maritima

Key Differences

• Birch Polypore is Least Concern while Brook Alder is Endangered.

Taxonomic Classification

Rank	Birch Polypore	Brook Alder
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Basidiomycota (Club Fungi)	Magnoliophyta (Flowering Plants)
Class	Agaricomycetes (Mushrooms)	Magnoliopsida (Dicots)
Order	Polyporales (Polyporales)	Fagales (Beeches & Oaks)
Family	Fomitopsidaceae	Betulaceae
Genus	Fomitopsis	Alnus
Species	Fomitopsis betulina	Alnus maritima

Conservation Status

Birch Polypore

LC — Least Concern

Brook Alder

EN — Endangered

Physical Characteristics

Attribute	Birch Polypore	Brook Alder
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Birch Polypore

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Denmark and United States.

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.

Birch Polypore

The Birch Polypore (Fomitopsis betulina) is a species in the genus Fomitopsis. It is currently classified as Least Concern on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

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.