American Dwarf Birch vs Castor

Betula pumila compared with Ricinus communis

Key Differences

• American Dwarf Birch is Least Concern while Castor is Not Evaluated.

Taxonomic Classification

Rank	American Dwarf Birch	Castor
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Fagales (Beeches & Oaks)	Malpighiales (Malpighiales)
Family	Betulaceae	Euphorbiaceae
Genus	Betula	Ricinus
Species	Betula pumila	Ricinus communis

Evolutionary Relationship

American Dwarf Birch and Castor share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

American Dwarf Birch

LC — Least Concern

Castor

NE — Not Evaluated

Physical Characteristics

Attribute	American Dwarf Birch	Castor
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

American Dwarf Birch

Habitat

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

Range

Distributed across Norway and United States.

Castor

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 7 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (33 countries), Asia (26 countries), Europe (23 countries), North America (15 countries), Oceania and the Pacific (14 countries), and South America (12 countries).

American Dwarf Birch

The American Dwarf Birch (Betula pumila) is a species in the genus Betula. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Castor

The Castor (Ricinus communis) is a species in the genus Ricinus. Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 7 distinct biome types. Populations are also found in montane and hi

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇺🇸 United States