Autumn Snowflake vs Rootless Duckweed

Acis autumnalis compared with Wolffia arrhiza

Key Differences

• Autumn Snowflake is Least Concern while Rootless Duckweed is Endangered.

Taxonomic Classification

Rank	Autumn Snowflake	Rootless Duckweed
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Liliopsida (Monocots)	Liliopsida (Monocots)
Order	Asparagales (Asparagales)	Alismatales (Alismatales)
Family	Amaryllidaceae	Araceae
Genus	Acis	Wolffia
Species	Acis autumnalis	Wolffia arrhiza

Evolutionary Relationship

Autumn Snowflake and Rootless Duckweed share a common ancestor at the Class level: Liliopsida. (Monocots)

Conservation Status

Autumn Snowflake

LC — Least Concern

Rootless Duckweed

EN — Endangered

Physical Characteristics

Attribute	Autumn Snowflake	Rootless Duckweed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Autumn Snowflake

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Found in Norway.

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.

Autumn Snowflake

The Autumn Snowflake (Acis autumnalis) is a species in the genus Acis. It is currently classified as Least Concern on the IUCN Red List. Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway