Blackthorn Dotty vs Caucasian Alder

Polystigma rubrum compared with Alnus subcordata

Taxonomic Classification

Rank	Blackthorn Dotty	Caucasian Alder
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Ascomycota (Sac Fungi)	Magnoliophyta (Flowering Plants)
Class	Sordariomycetes (Sordariomycetes)	Magnoliopsida (Dicots)
Order	Phyllachorales (Phyllachorales)	Fagales (Beeches & Oaks)
Family	Phyllachoraceae	Betulaceae
Genus	Polystigma	Alnus
Species	Polystigma rubrum	Alnus subcordata

Conservation Status

Blackthorn Dotty

LC — Least Concern

Caucasian Alder

LC — Least Concern

Physical Characteristics

Attribute	Blackthorn Dotty	Caucasian Alder
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blackthorn Dotty

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Caucasian Alder

Habitat

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

Blackthorn Dotty

The Blackthorn Dotty (Polystigma rubrum) is a species in the genus Polystigma. It is currently classified as Least Concern on the IUCN Red List. Distributed across Denmark, Norway, and Sweden.

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.