Arctic marsh sedge vs Merriam’s Pocket Mouse

Carex holostoma compared with Perognathus merriami

Key Differences

• Arctic marsh sedge is Vulnerable while Merriam’s Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Arctic marsh sedge	Merriam’s Pocket Mouse
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Liliopsida (Monocots)	Mammalia (Mammals)
Order	Poales (Grasses)	Rodentia (Rodents)
Family	Cyperaceae	Heteromyidae
Genus	Carex	Perognathus
Species	Carex holostoma	Perognathus merriami

Conservation Status

Arctic marsh sedge

VU — Vulnerable

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Arctic marsh sedge	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic marsh sedge

Habitat

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

Range

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

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Arctic marsh sedge

The Arctic marsh sedge (Carex holostoma) is a species in the genus Carex. It is currently classified as Vulnerable on the IUCN Red List. Typically found in grasslands, wetlands, forests, and cultivated landscapes.