Cottontail Foam Lichen vs

Stereocaulon paschale compared with Stereocaulon evolutum

Key Differences

• Cottontail Foam Lichen is Critically Endangered while is Endangered.

Taxonomic Classification

Rank	Cottontail Foam Lichen
Kingdom same	Fungi (грибы)	Fungi (грибы)
Phylum same	Ascomycota (аскомицеты)	Ascomycota (аскомицеты)
Class same	Lecanoromycetes (леканоромицеты)	Lecanoromycetes (леканоромицеты)
Order same	Lecanorales (леканоровые)	Lecanorales (леканоровые)
Family same	Stereocaulaceae	Stereocaulaceae
Genus same	Stereocaulon	Stereocaulon
Species	Stereocaulon paschale	Stereocaulon evolutum

Evolutionary Relationship

Cottontail Foam Lichen and share a common ancestor at the Genus level: Stereocaulon.

Conservation Status

Cottontail Foam Lichen

CR — Critically Endangered

EN — Endangered

Physical Characteristics

Attribute	Cottontail Foam Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cottontail Foam 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 Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

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

Stereocaulon evolutum is a fruticose lichen in the family Stereocaulaceae, assessed as Endangered (EN). It forms erect, branched pseudopodetia with granular cephalodia containing nitrogen-fixing cyanobacterial partners. Its endangered status reflects sensitivity to habitat disturbance and air quality degradation.

Shared Countries

Both species can be found in 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden