Andersson's arctic moss vs Rootless Duckweed

Arctoa anderssonii compared with Wolffia arrhiza

Taxonomic Classification

Rank	Andersson's arctic moss	Rootless Duckweed
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Bryophyta	Magnoliophyta (Flowering Plants)
Class	Bryopsida (Bryopsida)	Liliopsida (Monocots)
Order	Dicranales (Dicranales)	Alismatales (Alismatales)
Family	Rhabdoweisiaceae	Araceae
Genus	Arctoa	Wolffia
Species	Arctoa anderssonii	Wolffia arrhiza

Evolutionary Relationship

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

View Kingdom: Plantae

Conservation Status

Andersson's arctic moss

EN — Endangered

Rootless Duckweed

EN — Endangered

Physical Characteristics

Attribute	Andersson's arctic moss	Rootless Duckweed
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.

Rootless Duckweed

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate coniferous forests, among 4 distinct biome types spanning the Indomalayan and Oceanian and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Japan), Europe (10 countries), North America (Canada), and South America (Brazil). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.