Brook-Side Alder vs

Alnus serrulata compared with Trichormus variabilis

Key Differences

• Brook-Side Alder is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	Brook-Side 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 serrulata	Trichormus variabilis

Conservation Status

Brook-Side Alder

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

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

Habitat & Geographic Range

Brook-Side Alder

Habitat

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

Range

Distributed across Canada and United States.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Brook-Side Alder

The Brook-Side Alder (Alnus serrulata) 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.

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.