Brook Alder vs

Alnus maritima compared with Trichormus variabilis

Key Differences

• Brook Alder is Endangered while is Not Evaluated.

Taxonomic Classification

Rank	Brook Alder
Kingdom	Plantae (Plants)	Bacteria (Bacteria)
Phylum	Magnoliophyta (Flowering Plants)	Cyanobacteria (Cyanobacteria)
Class	Magnoliopsida (Dicots)	Cyanobacteriia
Order	Fagales (Beeches & Oaks)	Cyanobacteriales
Family	Betulaceae	Nostocaceae
Genus	Alnus	Trichormus
Species	Alnus maritima	Trichormus variabilis

Conservation Status

Brook Alder

EN — Endangered

NE — Not Evaluated

Physical Characteristics

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

Habitat & Geographic Range

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.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

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.

Trichormus variabilis is a filamentous, nitrogen-fixing cyanobacterium in the family Nostocaceae. It forms heterocysts — specialized nitrogen-fixing cells — within its trichomes and is found in freshwater, soil, and symbiotic associations. Its conservation status is not evaluated.