Blue-Gray Rosette Lichen vs Bosnian Blue

Physcia caesia compared with Agriades dardanus

Key Differences

• Blue-Gray Rosette Lichen is Least Concern while Bosnian Blue is Near Threatened.

Taxonomic Classification

Rank	Blue-Gray Rosette Lichen	Bosnian Blue
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Arthropoda (Arthropods)
Class	Lecanoromycetes (Lecanoromycetes)	Insecta (Insects)
Order	Caliciales (Caliciales)	Lepidoptera (Butterflies & Moths)
Family	Physciaceae	Lycaenidae
Genus	Physcia	Agriades
Species	Physcia caesia	Agriades dardanus

Conservation Status

Blue-Gray Rosette Lichen

LC — Least Concern

Bosnian Blue

NT — Near Threatened

Physical Characteristics

Attribute	Blue-Gray Rosette Lichen	Bosnian Blue
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blue-Gray 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.

Bosnian Blue

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (6 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Blue-Gray Rosette Lichen

The Blue Gray Rosette Lichen (Physcia caesia) is a species in the genus Physcia. It is currently classified as Least Concern on the IUCN Red List. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Bosnian Blue

The Bosnian Blue (Agriades dardanus) is a species in the genus Agriades. It is currently classified as Near Threatened on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.