Brook Alder vs Gray Alder

Alnus maritima compared with Alnus incana

Key Differences

• Brook Alder is Endangered while Gray Alder is Least Concern.

Taxonomic Classification

Rank	Brook Alder	Gray Alder
Kingdom same	Plantae (plantas)	Plantae (plantas)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order same	Fagales (Beeches & Oaks)	Fagales (Beeches & Oaks)
Family same	Betulaceae	Betulaceae
Genus same	Alnus	Alnus
Species	Alnus maritima	Alnus incana

Evolutionary Relationship

Brook Alder and Gray Alder share a common ancestor at the Genus level: Alnus.

Conservation Status

Brook Alder

EN — Endangered

Gray Alder

LC — Least Concern

Physical Characteristics

Attribute	Brook Alder	Gray 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.

Gray Alder

Habitat

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

Range

Widely distributed across Asia (Armenia), Europe (10 countries), and North America (United States).

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.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇱 Netherlands 🇬🇧 United Kingdom