Laysan Duck vs swamp flat sedge

Anas laysanensis compared with Cyperus ligularis

Key Differences

• Laysan Duck is Critically Endangered while swamp flat sedge is Not Evaluated.

Taxonomic Classification

Rank	Laysan Duck	swamp flat sedge
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Aves (Birds)	Liliopsida (Monocots)
Order	Anseriformes (Anseriformes)	Poales (Grasses)
Family	Anatidae	Cyperaceae
Genus	Anas	Cyperus
Species	Anas laysanensis	Cyperus ligularis

Conservation Status

Laysan Duck

CR — Critically Endangered

swamp flat sedge

NE — Not Evaluated

Physical Characteristics

Attribute	Laysan Duck	swamp flat sedge
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Laysan Duck

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

swamp flat sedge

Habitat

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

Range

Widely distributed across Africa (Guinea, Seychelles), North America (4 countries), Oceania and the Pacific (Marshall Islands, Micronesia), and South America (Brazil, Colombia).

Laysan Duck

Laysan Duck (Anas laysanensis) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.