Japanese Weasel vs Lesser Red-knotgrass

Mustela itatsi compared with Polygonum arenarium

Key Differences

• Japanese Weasel is Near Threatened while Lesser Red-knotgrass is Not Evaluated.

Taxonomic Classification

Rank	Japanese Weasel	Lesser Red-knotgrass
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Carnivora (Carnivorans)	Caryophyllales (Caryophyllales)
Family	Mustelidae (Weasels & Otters)	Polygonaceae
Genus	Mustela	Polygonum
Species	Mustela itatsi	Polygonum arenarium

Conservation Status

Japanese Weasel

NT — Near Threatened

Lesser Red-knotgrass

NE — Not Evaluated

Physical Characteristics

Attribute	Japanese Weasel	Lesser Red-knotgrass
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Japanese Weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Japan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Lesser Red-knotgrass

Habitat

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

Range

Found across Europe (11 countries) and North America (United States).