Dune Brittlestem vs Ezo Naki-Usagi

Psathyrella ammophila compared with Ochotona hyperborea

Key Differences

• Dune Brittlestem is Endangered while Ezo Naki-Usagi is Least Concern.

Taxonomic Classification

Rank	Dune Brittlestem	Ezo Naki-Usagi
Kingdom	Fungi (菌界)	Animalia (動物)
Phylum	Basidiomycota (担子菌門)	Chordata (脊索動物)
Class	Agaricomycetes (真正担子菌綱)	Mammalia (哺乳類)
Order	Agaricales (ハラタケ目)	Lagomorpha (ウサギ目)
Family	Psathyrellaceae	Ochotonidae
Genus	Psathyrella	Ochotona
Species	Psathyrella ammophila	Ochotona hyperborea

Conservation Status

Dune Brittlestem

EN — Endangered

Ezo Naki-Usagi

LC — Least Concern

Physical Characteristics

Attribute	Dune Brittlestem	Ezo Naki-Usagi
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dune Brittlestem

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Ezo Naki-Usagi

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.