Brown Cobblestone Lichen vs Grass-Leaf Pondweed

Acarospora fuscata compared with Potamogeton gramineus

Key Differences

• Brown Cobblestone Lichen is Least Concern while Grass-Leaf Pondweed is Endangered.

Taxonomic Classification

Rank	Brown Cobblestone Lichen	Grass-Leaf Pondweed
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Ascomycota (Sac Fungi)	Magnoliophyta (Flowering Plants)
Class	Lecanoromycetes (Lecanoromycetes)	Liliopsida (Monocots)
Order	Acarosporales (Acarosporales)	Alismatales (Alismatales)
Family	Acarosporaceae	Potamogetonaceae
Genus	Acarospora	Potamogeton
Species	Acarospora fuscata	Potamogeton gramineus

Conservation Status

Brown Cobblestone Lichen

LC — Least Concern

Grass-Leaf Pondweed

EN — Endangered

Physical Characteristics

Attribute	Brown Cobblestone Lichen	Grass-Leaf Pondweed
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.

Grass-Leaf Pondweed

Habitat

Inhabits boreal forests and taiga within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (8 countries) and North America (Canada, 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.

Shared Countries

Both species can be found in 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇺🇸 United States