Book Flapwort vs earth-cup flapwort

Nardia breidleri compared with Nardia geoscyphus

Key Differences

• Book Flapwort is Least Concern while earth-cup flapwort is Critically Endangered.

Taxonomic Classification

Rank	Book Flapwort	earth-cup flapwort
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Marchantiophyta (liverwort)	Marchantiophyta (liverwort)
Class same	Jungermanniopsida (Jungermanniopsida)	Jungermanniopsida (Jungermanniopsida)
Order same	Jungermanniales (Jungermanniales)	Jungermanniales (Jungermanniales)
Family same	Gymnomitriaceae	Gymnomitriaceae
Genus same	Nardia	Nardia
Species	Nardia breidleri	Nardia geoscyphus

Evolutionary Relationship

Book Flapwort and earth-cup flapwort share a common ancestor at the Genus level: Nardia.

Conservation Status

Book Flapwort

LC — Least Concern

earth-cup flapwort

CR — Critically Endangered

Physical Characteristics

Attribute	Book Flapwort	earth-cup flapwort
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.

earth-cup flapwort

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Found across Europe (6 countries) and North America (United States). Currently classified as Critically 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.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden