Blackboard Tree vs Cylindrical Prickly Pear

Alstonia scholaris compared with Opuntia curassavica

Key Differences

• Blackboard Tree is Least Concern while Cylindrical Prickly Pear is Near Threatened.

Taxonomic Classification

Rank	Blackboard Tree	Cylindrical Prickly Pear
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Gentianales (Gentianales)	Caryophyllales (Caryophyllales)
Family	Apocynaceae	Cactaceae
Genus	Alstonia	Opuntia
Species	Alstonia scholaris	Opuntia curassavica

Evolutionary Relationship

Blackboard Tree and Cylindrical Prickly Pear share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Blackboard Tree

LC — Least Concern

Cylindrical Prickly Pear

NT — Near Threatened

Physical Characteristics

Attribute	Blackboard Tree	Cylindrical Prickly Pear
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.

Cylindrical Prickly Pear

Habitat

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

Range

Found in Colombia. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.