Blackboard Tree vs Dollar-joint Prickly-pear

Alstonia scholaris compared with Opuntia chlorotica

Taxonomic Classification

Rank	Blackboard Tree	Dollar-joint Prickly-pear
Kingdom same	Plantae (植物)	Plantae (植物)
Phylum same	Magnoliophyta (被子植物門)	Magnoliophyta (被子植物門)
Class same	Magnoliopsida (モクレン綱)	Magnoliopsida (モクレン綱)
Order	Gentianales (リンドウ目)	Caryophyllales (ナデシコ目)
Family	Apocynaceae	Cactaceae
Genus	Alstonia	Opuntia
Species	Alstonia scholaris	Opuntia chlorotica

Evolutionary Relationship

Blackboard Tree and Dollar-joint Prickly-pear share a common ancestor at the Class level: Magnoliopsida. (モクレン綱)

Conservation Status

Blackboard Tree

LC — Least Concern

Dollar-joint Prickly-pear

LC — Least Concern

Physical Characteristics

Attribute	Blackboard Tree	Dollar-joint 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.

Dollar-joint Prickly-pear

Habitat

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

Range

Found in Italy.

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.