Andersson's arctic moss vs Ferny Azolla

Arctoa anderssonii compared with Azolla pinnata

Key Differences

• Andersson's arctic moss is Endangered while Ferny Azolla is Least Concern.

Taxonomic Classification

Rank	Andersson's arctic moss	Ferny Azolla
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Bryophyta	Tracheophyta
Class	Bryopsida (Bryopsida)	Polypodiopsida (Polypodiopsida)
Order	Dicranales (Dicranales)	Salviniales (Salviniales)
Family	Rhabdoweisiaceae	Salviniaceae
Genus	Arctoa	Azolla
Species	Arctoa anderssonii	Azolla pinnata

Evolutionary Relationship

Andersson's arctic moss and Ferny Azolla share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Andersson's arctic moss

EN — Endangered

Ferny Azolla

LC — Least Concern

Physical Characteristics

Attribute	Andersson's arctic moss	Ferny Azolla
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.

Ferny Azolla

Habitat

Found across multiple habitat types including deserts and xeric shrublands, tropical and subtropical moist broadleaf forests, and flooded grasslands and savannas spanning the Palearctic and Oceanian realms.

Range

Widely distributed across Africa (4 countries), Asia (Indonesia, Singapore, Taiwan), North America (Mexico, United States), and Oceania and the Pacific (Marshall Islands, New Zealand, Tuvalu).

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.