Blackboard Tree vs Koolau Tetraplasandra

Alstonia scholaris compared with Polyscias gymnocarpa

Key Differences

• Blackboard Tree is Least Concern while Koolau Tetraplasandra is Critically Endangered.

Taxonomic Classification

Rank	Blackboard Tree	Koolau Tetraplasandra
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Gentianales (Gentianales)	Apiales (Apiales)
Family	Apocynaceae	Araliaceae
Genus	Alstonia	Polyscias
Species	Alstonia scholaris	Polyscias gymnocarpa

Evolutionary Relationship

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

Conservation Status

Blackboard Tree

LC — Least Concern

Koolau Tetraplasandra

CR — Critically Endangered

Physical Characteristics

Attribute	Blackboard Tree	Koolau Tetraplasandra
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.

Koolau Tetraplasandra

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.