Ray's Knotgrass vs marreca-parda

Polygonum oxyspermum compared with Anas georgica

Taxonomic Classification

Rank	Ray's Knotgrass	marreca-parda
Kingdom	Plantae (plantas)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (cordados)
Class	Magnoliopsida (Dicots)	Aves (ave)
Order	Caryophyllales (Caryophyllales)	Anseriformes (Anseriformes)
Family	Polygonaceae	Anatidae
Genus	Polygonum	Anas
Species	Polygonum oxyspermum	Anas georgica

Conservation Status

Ray's Knotgrass

EN — Endangered

marreca-parda

EN — Endangered

Physical Characteristics

Attribute	Ray's Knotgrass	marreca-parda
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ray's Knotgrass

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

marreca-parda

Habitat

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

Range

Found across Europe (6 countries) and South America (Colombia, Ecuador). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

marreca-parda

O marreco-de-bico-amarelo (Anas georgica) está classificado como Em Perigo (EN) na Lista Vermelha da IUCN. Com alto risco de extinção na natureza, com declínio populacional significativo e ameaças contínuas à sua sobrevivência.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway