Blackboard Tree vs Large-flowered Hemp-nettle

Alstonia scholaris compared with Galeopsis speciosa

Key Differences

• Blackboard Tree is Least Concern while Large-flowered Hemp-nettle is Near Threatened.

Taxonomic Classification

Rank	Blackboard Tree	Large-flowered Hemp-nettle
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	Lamiaceae
Genus	Alstonia	Galeopsis
Species	Alstonia scholaris	Galeopsis speciosa

Evolutionary Relationship

Blackboard Tree and Large-flowered Hemp-nettle share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Blackboard Tree

LC — Least Concern

Large-flowered Hemp-nettle

NT — Near Threatened

Physical Characteristics

Attribute	Blackboard Tree	Large-flowered Hemp-nettle
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.

Large-flowered Hemp-nettle

Habitat

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

Range

Found across Europe (11 countries) and North America (Canada). 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.