Rootless Duckweed vs small tortoiseshell

Wolffia arrhiza compared with Aglais urticae

Key Differences

Rootless Duckweed is Endangered while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Rootless Duckweed	small tortoiseshell
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Arthropoda (Arthropods)
Class	Liliopsida (Monocots)	Insecta (Insects)
Order	Alismatales (Alismatales)	Lepidoptera (Butterflies & Moths)
Family	Araceae	Nymphalidae (Brush-footed Butterflies)
Genus	Wolffia	Aglais
Species	Wolffia arrhiza	Aglais urticae

Conservation Status

Rootless Duckweed

EN — Endangered

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Rootless Duckweed	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic 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.

small tortoiseshell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (41 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Rootless Duckweed

No description available.

small tortoiseshell

small tortoiseshell (Aglais urticae) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.