Blackboard Tree vs Rock Whitlowgrass

Alstonia scholaris compared with Draba norvegica

Taxonomic Classification

Rank	Blackboard Tree	Rock Whitlowgrass
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Gentianales (Gentianales)	Brassicales (Brassicales)
Family	Apocynaceae	Brassicaceae
Genus	Alstonia	Draba
Species	Alstonia scholaris	Draba norvegica

Evolutionary Relationship

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

Conservation Status

Blackboard Tree

LC — Least Concern

Rock Whitlowgrass

LC — Least Concern

Physical Characteristics

Attribute	Blackboard Tree	Rock Whitlowgrass
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.

Rock Whitlowgrass

Habitat

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

Range

Distributed across Canada, Norway, and Sweden.

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.