California alder vs Red Alder

Alnus rhombifolia compared with Alnus rubra

Key Differences

• California alder is Least Concern while Red Alder is Not Evaluated.

Taxonomic Classification

Rank	California alder	Red Alder
Kingdom same	Plantae (Plants)	Plantae (Plants)
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 rhombifolia	Alnus rubra

Evolutionary Relationship

California alder and Red Alder share a common ancestor at the Genus level: Alnus.

Conservation Status

California alder

LC — Least Concern

Red Alder

NE — Not Evaluated

Physical Characteristics

Attribute	California alder	Red Alder
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

California alder

Habitat

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

Range

Found in Canada.

Red Alder

Habitat

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

Range

Widely distributed across Europe (7 countries), North America (Canada), and Oceania and the Pacific (Australia).

California alder

The California alder (Alnus rhombifolia) 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.

Shared Countries

Both species can be found in 1 countries:

🇨🇦 Canada