Merriam’s Pocket Mouse vs Star Rosette Lichen

Perognathus merriami compared with Physcia stellaris

Key Differences

• Merriam’s Pocket Mouse is Least Concern while Star Rosette Lichen is Endangered.

Taxonomic Classification

Rank	Merriam’s Pocket Mouse	Star Rosette Lichen
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (Mammals)	Lecanoromycetes (Lecanoromycetes)
Order	Rodentia (Rodents)	Caliciales (Caliciales)
Family	Heteromyidae	Physciaceae
Genus	Perognathus	Physcia
Species	Perognathus merriami	Physcia stellaris

Conservation Status

Merriam’s Pocket Mouse

LC — Least Concern

Star Rosette Lichen

EN — Endangered

Physical Characteristics

Attribute	Merriam’s Pocket Mouse	Star Rosette Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Star Rosette Lichen

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

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