Bent Ring Lichen vs Concentric Ring Lichen

Arctoparmelia incurva compared with Arctoparmelia centrifuga

Key Differences

• Bent Ring Lichen is Critically Endangered while Concentric Ring Lichen is Least Concern.

Taxonomic Classification

Rank	Bent Ring Lichen	Concentric Ring Lichen
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Ascomycota (Sac Fungi)	Ascomycota (Sac Fungi)
Class same	Lecanoromycetes (Lecanoromycetes)	Lecanoromycetes (Lecanoromycetes)
Order same	Lecanorales (Lecanorales)	Lecanorales (Lecanorales)
Family same	Parmeliaceae	Parmeliaceae
Genus same	Arctoparmelia	Arctoparmelia
Species	Arctoparmelia incurva	Arctoparmelia centrifuga

Evolutionary Relationship

Bent Ring Lichen and Concentric Ring Lichen share a common ancestor at the Genus level: Arctoparmelia.

Conservation Status

Bent Ring Lichen

CR — Critically Endangered

Concentric Ring Lichen

LC — Least Concern

Physical Characteristics

Attribute	Bent Ring Lichen	Concentric Ring Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bent Ring Lichen

Habitat

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

Range

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

Concentric Ring Lichen

Habitat

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

Range

Distributed across Norway, Sweden, and United States.

Bent Ring Lichen

The Bent Ring Lichen (Arctoparmelia incurva) is a species in the genus Arctoparmelia. It is currently classified as Critically Endangered on the IUCN Red List. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Shared Countries

Both species can be found in 3 countries:

🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States