Crested Oval Sedge vs Japanese Weasel

Carex cristatella compared with Mustela itatsi

Key Differences

• Crested Oval Sedge is Extinct while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	Crested Oval Sedge	Japanese Weasel
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Liliopsida (Monocots)	Mammalia (Mammals)
Order	Poales (Grasses)	Carnivora (Carnivorans)
Family	Cyperaceae	Mustelidae (Weasels & Otters)
Genus	Carex	Mustela
Species	Carex cristatella	Mustela itatsi

Conservation Status

Crested Oval Sedge

EX — Extinct

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Crested Oval Sedge	Japanese Weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Crested Oval Sedge

Habitat

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

Range

Distributed across Canada and United States.

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.