Andersson's arctic moss vs Ludwig's Thread-moss

Arctoa anderssonii compared with Pohlia ludwigii

Key Differences

• Andersson's arctic moss is Endangered while Ludwig's Thread-moss is Near Threatened.

Taxonomic Classification

Rank	Andersson's arctic moss	Ludwig's Thread-moss
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Bryophyta	Bryophyta
Class same	Bryopsida (Bryopsida)	Bryopsida (Bryopsida)
Order	Dicranales (Dicranales)	Bryales (Bryales)
Family	Rhabdoweisiaceae	Mniaceae
Genus	Arctoa	Pohlia
Species	Arctoa anderssonii	Pohlia ludwigii

Evolutionary Relationship

Andersson's arctic moss and Ludwig's Thread-moss share a common ancestor at the Class level: Bryopsida. (Bryopsida)

Conservation Status

Andersson's arctic moss

EN — Endangered

Ludwig's Thread-moss

NT — Near Threatened

Physical Characteristics

Attribute	Andersson's arctic moss	Ludwig's Thread-moss
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Andersson's arctic moss

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

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

Ludwig's Thread-moss

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Andersson's arctic moss

The Andersson's arctic moss (Arctoa anderssonii) is a species in the genus Arctoa. It is currently classified as Endangered 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