Laysan Duck vs Tidalmarsh flatsedge

Anas laysanensis compared with Cyperus serotinus

Key Differences

• Laysan Duck is Critically Endangered while Tidalmarsh flatsedge is Extinct.

Taxonomic Classification

Rank	Laysan Duck	Tidalmarsh flatsedge
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 serotinus

Conservation Status

Laysan Duck

CR — Critically Endangered

Tidalmarsh flatsedge

EX — Extinct

Physical Characteristics

Attribute	Laysan Duck	Tidalmarsh flatsedge
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.

Tidalmarsh flatsedge

Habitat

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

Range

Distributed across Bulgaria, Italy, Portugal, Taiwan, and United States.

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.