Book Flapwort vs Brook Alder

Nardia breidleri compared with Alnus maritima

Key Differences

• Book Flapwort is Least Concern while Brook Alder is Endangered.

Taxonomic Classification

Rank	Book Flapwort	Brook Alder
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Marchantiophyta (liverwort)	Magnoliophyta (Flowering Plants)
Class	Jungermanniopsida (Jungermanniopsida)	Magnoliopsida (Dicots)
Order	Jungermanniales (Jungermanniales)	Fagales (Beeches & Oaks)
Family	Gymnomitriaceae	Betulaceae
Genus	Nardia	Alnus
Species	Nardia breidleri	Alnus maritima

Evolutionary Relationship

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

Conservation Status

Book Flapwort

LC — Least Concern

Brook Alder

EN — Endangered

Physical Characteristics

Attribute	Book Flapwort	Brook Alder
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Book Flapwort

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

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.

Book Flapwort

The Book Flapwort (Nardia breidleri) is a species in the genus Nardia. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

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.