Cauliflower Foam Lichen vs Rock Foam

Stereocaulon botryosum compared with Stereocaulon saxatile

Key Differences

• Cauliflower Foam Lichen is Least Concern while Rock Foam is Near Threatened.

Taxonomic Classification

Rank	Cauliflower Foam Lichen	Rock Foam
Kingdom same	Fungi (เห็ดรา)	Fungi (เห็ดรา)
Phylum same	Ascomycota (Sac Fungi)	Ascomycota (Sac Fungi)
Class same	Lecanoromycetes (Lecanoromycetes)	Lecanoromycetes (Lecanoromycetes)
Order same	Lecanorales (Lecanorales)	Lecanorales (Lecanorales)
Family same	Stereocaulaceae	Stereocaulaceae
Genus same	Stereocaulon	Stereocaulon
Species	Stereocaulon botryosum	Stereocaulon saxatile

Evolutionary Relationship

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

Conservation Status

Cauliflower Foam Lichen

LC — Least Concern

Rock Foam

NT — Near Threatened

Physical Characteristics

Attribute	Cauliflower Foam Lichen	Rock Foam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cauliflower Foam Lichen

Habitat

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

Range

Distributed across Colombia, Norway, Sweden, and United States.

Rock Foam

Habitat

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

Range

Distributed across Denmark, Norway, Sweden, and United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Cauliflower Foam Lichen

The Cauliflower Foam Lichen (Stereocaulon botryosum) is a species in the genus Stereocaulon. It is currently classified as Least Concern on the IUCN Red List. Native to Europe and North America and South America, inhabiting ecosystems characteristic of the region.

Shared Countries

Both species can be found in 3 countries:

🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States