Alder vs American Walnut

Alnus glutinosa compared with Juglans nigra

Key Differences

• Alder is Least Concern while American Walnut is Not Evaluated.

Taxonomic Classification

Rank	Alder	American Walnut
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	Betulaceae	Juglandaceae
Genus	Alnus	Juglans
Species	Alnus glutinosa	Juglans nigra

Evolutionary Relationship

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

Conservation Status

Alder

LC — Least Concern

American Walnut

NE — Not Evaluated

Physical Characteristics

Attribute	Alder	American Walnut
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alder

Habitat

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

Range

Widely distributed across Africa (South Africa), Asia (India, Japan), Europe (6 countries), North America (Canada, United States), Oceania and the Pacific (Australia, New Zealand), and South America (Chile).

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).

Alder

The Alder (Alnus glutinosa) 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.

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.

Shared Countries

Both species can be found in 7 countries:

🇧🇪 Belgium 🇨🇦 Canada 🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden 🇺🇸 United States