Rootless Duckweed vs Spotted Sandpiper

Wolffia arrhiza compared with Actitis macularius

Key Differences

• Rootless Duckweed is Endangered while Spotted Sandpiper is Least Concern.

Taxonomic Classification

Rank	Rootless Duckweed	Spotted Sandpiper
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Liliopsida (Monocots)	Aves (Birds)
Order	Alismatales (Alismatales)	Charadriiformes (Charadriiformes)
Family	Araceae	Scolopacidae
Genus	Wolffia	Actitis
Species	Wolffia arrhiza	Actitis macularius

Conservation Status

Rootless Duckweed

EN — Endangered

Spotted Sandpiper

LC — Least Concern

Physical Characteristics

Attribute	Rootless Duckweed	Spotted Sandpiper
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.

Spotted Sandpiper

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Spotted Sandpiper

Spotted Sandpiper (Actitis macularius) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden