Marsh Valerian vs Merriam’s Pocket Mouse

Valeriana dioica compared with Perognathus merriami

Key Differences

• Marsh Valerian is Extinct while Merriam’s Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Marsh Valerian	Merriam’s Pocket Mouse
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Dipsacales (Dipsacales)	Rodentia (Rodents)
Family	Caprifoliaceae	Heteromyidae
Genus	Valeriana	Perognathus
Species	Valeriana dioica	Perognathus merriami

Conservation Status

Marsh Valerian

EX — Extinct

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Marsh Valerian	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Marsh Valerian

Habitat

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

Range

Found across Europe (5 countries) and North America (United States).

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.