Blue-Gray Rosette Lichen vs Noctule

Physcia caesia compared with Nyctalus noctula

Key Differences

• Blue-Gray Rosette Lichen is Least Concern while Noctule is Vulnerable.

Taxonomic Classification

Rank	Blue-Gray Rosette Lichen	Noctule
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Lecanoromycetes (Lecanoromycetes)	Mammalia (Mammals)
Order	Caliciales (Caliciales)	Chiroptera (Bats)
Family	Physciaceae	Vespertilionidae
Genus	Physcia	Nyctalus
Species	Physcia caesia	Nyctalus noctula

Conservation Status

Blue-Gray Rosette Lichen

LC — Least Concern

Noctule

VU — Vulnerable

Physical Characteristics

Attribute	Blue-Gray Rosette Lichen	Noctule
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.

Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Noctule

Noctule (Nyctalus noctula) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden