Brown Cobblestone Lichen vs Marsh Cress

Acarospora fuscata compared with Rorippa islandica

Key Differences

Brown Cobblestone Lichen is Least Concern while Marsh Cress is Endangered.

Taxonomic Classification

Rank	Brown Cobblestone Lichen	Marsh Cress
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Ascomycota (Sac Fungi)	Magnoliophyta (Flowering Plants)
Class	Lecanoromycetes (Lecanoromycetes)	Magnoliopsida (Dicots)
Order	Acarosporales (Acarosporales)	Brassicales (Brassicales)
Family	Acarosporaceae	Brassicaceae
Genus	Acarospora	Rorippa
Species	Acarospora fuscata	Rorippa islandica

Conservation Status

Brown Cobblestone Lichen

LC — Least Concern

Marsh Cress

EN — Endangered

Physical Characteristics

Attribute	Brown Cobblestone Lichen	Marsh Cress
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Cobblestone Lichen

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, and United States.

Marsh Cress

Habitat

Found across multiple habitat types including boreal forests and taiga, flooded grasslands and savannas, and Mediterranean forests and woodlands, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Libya), Asia (India), Europe (Iceland, Norway, Sweden), and North America (Canada, Mexico, United States). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Brown Cobblestone Lichen

The Brown Cobblestone Lichen (Acarospora fuscata) is a species in the genus Acarospora. It is currently classified as Least Concern on the IUCN Red List. Native to Europe and North America, inhabiting ecosystems characteristic of the region.