Brook Alder vs Spiny Threadwort

Alnus maritima compared with Cephaloziella spinigera

Key Differences

• Brook Alder is Endangered while Spiny Threadwort is Least Concern.

Taxonomic Classification

Rank	Brook Alder	Spiny Threadwort
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Magnoliophyta (Flowering Plants)	Marchantiophyta (liverwort)
Class	Magnoliopsida (Dicots)	Jungermanniopsida (Jungermanniopsida)
Order	Fagales (Beeches & Oaks)	Jungermanniales (Jungermanniales)
Family	Betulaceae	Cephaloziellaceae
Genus	Alnus	Cephaloziella
Species	Alnus maritima	Cephaloziella spinigera

Evolutionary Relationship

Brook Alder and Spiny Threadwort share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Brook Alder

EN — Endangered

Spiny Threadwort

LC — Least Concern

Physical Characteristics

Attribute	Brook Alder	Spiny Threadwort
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.

Spiny Threadwort

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.