Blackboard Tree vs Caucasian Alder

Alstonia scholaris compared with Alnus subcordata

Taxonomic Classification

Rank	Blackboard Tree	Caucasian Alder
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Gentianales (Gentianales)	Fagales (Beeches & Oaks)
Family	Apocynaceae	Betulaceae
Genus	Alstonia	Alnus
Species	Alstonia scholaris	Alnus subcordata

Evolutionary Relationship

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

Conservation Status

Blackboard Tree

LC — Least Concern

Caucasian Alder

LC — Least Concern

Physical Characteristics

Attribute	Blackboard Tree	Caucasian Alder
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic 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.

Caucasian Alder

Habitat

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.

Caucasian Alder

The Caucasian Alder (Alnus subcordata) 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.