Blackboard Tree vs toadflax-leaf St. John's-wort

Alstonia scholaris compared with Hypericum linariifolium

Key Differences

• Blackboard Tree is Least Concern while toadflax-leaf St. John's-wort is Not Evaluated.

Taxonomic Classification

Rank	Blackboard Tree	toadflax-leaf St. John's-wort
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Gentianales (Gentianales)	Malpighiales (Malpighiales)
Family	Apocynaceae	Hypericaceae
Genus	Alstonia	Hypericum
Species	Alstonia scholaris	Hypericum linariifolium

Evolutionary Relationship

Blackboard Tree and toadflax-leaf St. John's-wort share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Blackboard Tree

LC — Least Concern

toadflax-leaf St. John's-wort

NE — Not Evaluated

Physical Characteristics

Attribute	Blackboard Tree	toadflax-leaf St. John's-wort
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.

toadflax-leaf St. John's-wort

Habitat

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

Range

Distributed across Belgium and Portugal.

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.