Brown Cobblestone Lichen vs Prostrate knotweed

Acarospora fuscata compared with Polygonum aviculare

Key Differences

• Brown Cobblestone Lichen is Least Concern while Prostrate knotweed is Not Evaluated.

Taxonomic Classification

Rank	Brown Cobblestone Lichen	Prostrate knotweed
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Ascomycota (Sac Fungi)	Magnoliophyta (Flowering Plants)
Class	Lecanoromycetes (Lecanoromycetes)	Magnoliopsida (Dicots)
Order	Acarosporales (Acarosporales)	Caryophyllales (Caryophyllales)
Family	Acarosporaceae	Polygonaceae
Genus	Acarospora	Polygonum
Species	Acarospora fuscata	Polygonum aviculare

Conservation Status

Brown Cobblestone Lichen

LC — Least Concern

Prostrate knotweed

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Cobblestone Lichen	Prostrate knotweed
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.

Prostrate knotweed

Habitat

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

Range

Widely distributed across Africa (9 countries), Asia (8 countries), Europe (11 countries), North America (6 countries), Oceania and the Pacific (Australia, Solomon Islands), and South America (7 countries).

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