Alpine Rock-Cress vs Dark Gray Boulder Lichen

Arabis alpina compared with Porpidia cinereoatra

Key Differences

• Alpine Rock-Cress is Least Concern while Dark Gray Boulder Lichen is Near Threatened.

Taxonomic Classification

Rank	Alpine Rock-Cress	Dark Gray Boulder Lichen
Kingdom	Plantae (Plants)	Fungi (Fungi)
Phylum	Magnoliophyta (Flowering Plants)	Ascomycota (Sac Fungi)
Class	Magnoliopsida (Dicots)	Lecanoromycetes (Lecanoromycetes)
Order	Brassicales (Brassicales)	Lecideales (Lecideales)
Family	Brassicaceae	Lecideaceae
Genus	Arabis	Porpidia
Species	Arabis alpina	Porpidia cinereoatra

Conservation Status

Alpine Rock-Cress

LC — Least Concern

Dark Gray Boulder Lichen

NT — Near Threatened

Physical Characteristics

Attribute	Alpine Rock-Cress	Dark Gray Boulder Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alpine Rock-Cress

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Widely distributed across Europe (10 countries), North America (Canada, United States), and South America (Argentina).

Dark Gray Boulder Lichen

Habitat

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

Range

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

Alpine Rock-Cress

The Alpine Rock-Cress (Arabis alpina) is a species in the genus Arabis. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions. Widely distributed across Europe (10 countries), North America (Canada, United States), and South America (Argentina).

Shared Countries

Both species can be found in 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States