Andersson's arctic moss vs truncated screw moss

Arctoa anderssonii compared with Tortula truncata

Key Differences

• Andersson's arctic moss is Endangered while truncated screw moss is Least Concern.

Taxonomic Classification

Rank	Andersson's arctic moss	truncated screw moss
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Bryophyta	Bryophyta
Class same	Bryopsida (Bryopsida)	Bryopsida (Bryopsida)
Order	Dicranales (Dicranales)	Pottiales (Pottiales)
Family	Rhabdoweisiaceae	Pottiaceae
Genus	Arctoa	Tortula
Species	Arctoa anderssonii	Tortula truncata

Evolutionary Relationship

Andersson's arctic moss and truncated screw moss share a common ancestor at the Class level: Bryopsida. (Bryopsida)

Conservation Status

Andersson's arctic moss

EN — Endangered

truncated screw moss

LC — Least Concern

Physical Characteristics

Attribute	Andersson's arctic moss	truncated screw 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.

truncated screw moss

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and North America (United States).

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