Blackboard Tree vs Cayenne porterweed

Alstonia scholaris compared with Stachytarpheta cayennensis

Taxonomic Classification

Rank	Blackboard Tree	Cayenne porterweed
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Gentianales (Gentianales)	Lamiales (Lamiales)
Family	Apocynaceae	Verbenaceae
Genus	Alstonia	Stachytarpheta
Species	Alstonia scholaris	Stachytarpheta cayennensis

Evolutionary Relationship

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

Conservation Status

Blackboard Tree

LC — Least Concern

Cayenne porterweed

LC — Least Concern

Physical Characteristics

Attribute	Blackboard Tree	Cayenne porterweed
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.

Cayenne porterweed

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 7 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (10 countries), Asia (5 countries), North America (4 countries), Oceania and the Pacific (12 countries), and South America (Brazil, Chile, Colombia).

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.

Cayenne porterweed

The Cayenne porterweed (Stachytarpheta cayennensis) is a species in the genus Stachytarpheta. It is currently classified as Least Concern on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 7 distinct biome types. Populations are also found in

Shared Countries

Both species can be found in 2 countries:

🇫🇲 Micronesia 🇺🇸 United States