Caucasian Alder vs Dark Gray Boulder Lichen

Alnus subcordata compared with Porpidia cinereoatra

Key Differences

• Caucasian Alder is Least Concern while Dark Gray Boulder Lichen is Near Threatened.

Taxonomic Classification

Rank	Caucasian Alder	Dark Gray Boulder Lichen
Kingdom	Plantae (Plants)	Fungi (Fungi)
Phylum	Magnoliophyta (Flowering Plants)	Ascomycota (Sac Fungi)
Class	Magnoliopsida (Dicots)	Lecanoromycetes (Lecanoromycetes)
Order	Fagales (Beeches & Oaks)	Lecideales (Lecideales)
Family	Betulaceae	Lecideaceae
Genus	Alnus	Porpidia
Species	Alnus subcordata	Porpidia cinereoatra

Conservation Status

Caucasian Alder

LC — Least Concern

Dark Gray Boulder Lichen

NT — Near Threatened

Physical Characteristics

Attribute	Caucasian Alder	Dark Gray Boulder Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Caucasian Alder

Habitat

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

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.

Caucasian Alder

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