Brook Alder vs Variable flatsedge

Alnus maritima compared with Cyperus difformis

Key Differences

• Brook Alder is Endangered while Variable flatsedge is Least Concern.

Taxonomic Classification

Rank	Brook Alder	Variable flatsedge
Kingdom same	Plantae (植物)	Plantae (植物)
Phylum same	Magnoliophyta (被子植物門)	Magnoliophyta (被子植物門)
Class	Magnoliopsida (モクレン綱)	Liliopsida (単子葉植物綱)
Order	Fagales (ブナ目)	Poales (イネ目)
Family	Betulaceae	Cyperaceae
Genus	Alnus	Cyperus
Species	Alnus maritima	Cyperus difformis

Evolutionary Relationship

Brook Alder and Variable flatsedge share a common ancestor at the Phylum level: Magnoliophyta. (被子植物門)

Conservation Status

Brook Alder

EN — Endangered

Variable flatsedge

LC — Least Concern

Physical Characteristics

Attribute	Brook Alder	Variable flatsedge
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.

Variable flatsedge

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 6 distinct biome types spanning the Indomalayan and Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (9 countries), Asia (10 countries), Europe (9 countries), North America (6 countries), Oceania and the Pacific (5 countries), and South America (6 countries).

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 4 countries:

🇧🇪 Belgium 🇫🇷 France 🇳🇱 Netherlands 🇬🇧 United Kingdom