Asterisk Lichen vs Brook Alder

Arthonia radiata compared with Alnus maritima

Key Differences

• Asterisk Lichen is Least Concern while Brook Alder is Endangered.

Taxonomic Classification

Rank	Asterisk Lichen	Brook Alder
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Ascomycota (Sac Fungi)	Magnoliophyta (Flowering Plants)
Class	Arthoniomycetes (Arthoniomycetes)	Magnoliopsida (Dicots)
Order	Arthoniales (Arthoniales)	Fagales (Beeches & Oaks)
Family	Arthoniaceae	Betulaceae
Genus	Arthonia	Alnus
Species	Arthonia radiata	Alnus maritima

Conservation Status

Asterisk Lichen

LC — Least Concern

Brook Alder

EN — Endangered

Physical Characteristics

Attribute	Asterisk Lichen	Brook Alder
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Asterisk Lichen

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Colombia).

Brook Alder

Habitat

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

Range

Distributed across Belgium, France, Netherlands, and United Kingdom. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Asterisk Lichen

The Asterisk Lichen (Arthonia radiata) is a species in the genus Arthonia. 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. Widely distributed across Europe (4 countries), North America (United States), and South America (Colombia).

Brook Alder

The Brook Alder (Alnus maritima) is a species in the genus Alnus. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.