Blackboard Tree vs Broad Scalewort

Alstonia scholaris compared with Porella obtusata

Key Differences

Blackboard Tree is Least Concern while Broad Scalewort is Endangered.

Taxonomic Classification

Rank	Blackboard Tree	Broad Scalewort
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Magnoliophyta (Flowering Plants)	Marchantiophyta (liverwort)
Class	Magnoliopsida (Dicots)	Jungermanniopsida (Jungermanniopsida)
Order	Gentianales (Gentianales)	Porellales (Porellales)
Family	Apocynaceae	Porellaceae
Genus	Alstonia	Porella
Species	Alstonia scholaris	Porella obtusata

Evolutionary Relationship

Blackboard Tree and Broad Scalewort share a common ancestor at the Kingdom level: Plantae. (Plants)

View Kingdom: Plantae

Conservation Status

Blackboard Tree

LC — Least Concern

Broad Scalewort

EN — Endangered

Physical Characteristics

Attribute	Blackboard Tree	Broad Scalewort
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.

Broad Scalewort

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, Sweden, and United States. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Broad Scalewort

The Broad Scalewort (Porella obtusata) is a species in the genus Porella. It is currently classified as Endangered on the IUCN Red List. Native to Europe and North America, inhabiting ecosystems characteristic of the region.