American Elm vs Blackboard Tree

Ulmus americana compared with Alstonia scholaris

Key Differences

• American Elm is Endangered while Blackboard Tree is Least Concern.

Taxonomic Classification

Rank	American Elm	Blackboard Tree
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Rosales (Roses & Allies)	Gentianales (Gentianales)
Family	Ulmaceae	Apocynaceae
Genus	Ulmus	Alstonia
Species	Ulmus americana	Alstonia scholaris

Evolutionary Relationship

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

Conservation Status

American Elm

EN — Endangered

Blackboard Tree

LC — Least Concern

Physical Characteristics

Attribute	American Elm	Blackboard Tree
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.

Blackboard Tree

Habitat

Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.

Range

Distributed across Micronesia, Taiwan, and United States.

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.

Blackboard Tree

The Blackboard Tree (Alstonia scholaris) is a species in the genus Alstonia. It is currently classified as Least Concern on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.

Shared Countries

Both species can be found in 2 countries:

🇹🇼 Taiwan 🇺🇸 United States