Five-leaflet Bitter-cress vs Laysan Duck

Cardamine pentaphyllos compared with Anas laysanensis

Key Differences

• Five-leaflet Bitter-cress is Not Evaluated while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Five-leaflet Bitter-cress	Laysan Duck
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Aves (Birds)
Order	Brassicales (Brassicales)	Anseriformes (Anseriformes)
Family	Brassicaceae	Anatidae
Genus	Cardamine	Anas
Species	Cardamine pentaphyllos	Anas laysanensis

Conservation Status

Five-leaflet Bitter-cress

NE — Not Evaluated

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Five-leaflet Bitter-cress	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Five-leaflet Bitter-cress

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found in Sweden.

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.

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.