American Walnut vs California alder

Juglans nigra compared with Alnus rhombifolia

Key Differences

• American Walnut is Not Evaluated while California alder is Least Concern.

Taxonomic Classification

Rank	American Walnut	California 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	Juglandaceae	Betulaceae
Genus	Juglans	Alnus
Species	Juglans nigra	Alnus rhombifolia

Evolutionary Relationship

American Walnut and California alder share a common ancestor at the Order level: Fagales. (Beeches & Oaks)

Conservation Status

American Walnut

NE — Not Evaluated

California alder

LC — Least Concern

Physical Characteristics

Attribute	American Walnut	California alder
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

American Walnut

Habitat

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

Range

Widely distributed across Asia (Armenia), Europe (19 countries), North America (Canada, Mexico, United States), and South America (Brazil).

California alder

Habitat

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

Range

Found in Canada.

American Walnut

The American Walnut (Juglans nigra) is a species in the genus Juglans. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

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