American Elm vs Castor

Ulmus americana compared with Ricinus communis

Key Differences

• American Elm is Endangered while Castor is Not Evaluated.

Taxonomic Classification

Rank	American Elm	Castor
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Rosales (Roses & Allies)	Malpighiales (Malpighiales)
Family	Ulmaceae	Euphorbiaceae
Genus	Ulmus	Ricinus
Species	Ulmus americana	Ricinus communis

Evolutionary Relationship

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

Conservation Status

American Elm

EN — Endangered

Castor

NE — Not Evaluated

Physical Characteristics

Attribute	American Elm	Castor
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

American Elm

Habitat

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

Range

Distributed across Canada, Taiwan, and United States. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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 Elm

The American Elm (Ulmus americana) is a species in the genus Ulmus. It is currently classified as Endangered 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:

🇹🇼 Taiwan 🇺🇸 United States