Common Wintergreen vs Laysan Duck

Pyrola minor compared with Anas laysanensis

Taxonomic Classification

Rank	Common Wintergreen	Laysan Duck
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Aves (Birds)
Order	Ericales (Ericales)	Anseriformes (Anseriformes)
Family	Ericaceae	Anatidae
Genus	Pyrola	Anas
Species	Pyrola minor	Anas laysanensis

Conservation Status

Common Wintergreen

CR — Critically Endangered

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Common Wintergreen	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Wintergreen

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (7 countries) and North America (Canada, United States). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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.

Common Wintergreen

<em>Pyrola minor</em>, commonly known as the common wintergreen or lesser wintergreen, is a small evergreen perennial herb in the family Ericaceae, listed as Critically Endangered on the IUCN Red List, reflecting severe and ongoing population declines driven primarily by habitat loss, succession of open woodland habitats, and changes in land management practices across its native range. The species occurs in Europe and North America, typically growing in acidic, humus-rich soils in boreal and montane coniferous or mixed woodlands, heathland, and mossy habitats. <em>Pyrola minor</em> is characterized by its rosette of dark, glossy, rounded evergreen basal leaves and a leafless flowering scape bearing a dense raceme of small, nodding, pale pink to white bell-shaped flowers produced in summer. The species requires mycorrhizal associations with soil fungi for successful establishment and growth, making it highly sensitive to disturbances that disrupt fungal networks in the soil. Unlike most of its congeners, <em>Pyrola minor</em> has an unsegmented, short, straight style protruding from each flower, a key distinguishing character. Biological traits including average lifespan, rosette diameter, and mass remain poorly documented in standardized databases. Conservation of <em>Pyrola minor</em> typically requires careful habitat management to maintain suitable open woodland and heathland conditions, prevent encroachment by taller vegetation, and preserve the intact soil fungal communities upon which this increasingly rare species depends.

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.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇫🇷 France 🇳🇴 Norway