Blackboard Tree vs Warer willow

Alstonia scholaris compared with Justicia gendarussa

Key Differences

• Blackboard Tree is Least Concern while Warer willow is Not Evaluated.

Taxonomic Classification

Rank	Blackboard Tree	Warer willow
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	Acanthaceae
Genus	Alstonia	Justicia
Species	Alstonia scholaris	Justicia gendarussa

Evolutionary Relationship

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

Conservation Status

Blackboard Tree

LC — Least Concern

Warer willow

NE — Not Evaluated

Physical Characteristics

Attribute	Blackboard Tree	Warer willow
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.

Warer willow

Habitat

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

Range

Widely distributed across Africa (Seychelles), Asia (India, Taiwan, Timor-Leste), North America (United States), and South America (Brazil).

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.

Shared Countries

Both species can be found in 2 countries:

🇹🇼 Taiwan 🇺🇸 United States