Blackboard Tree vs Diatom

Alstonia scholaris compared with Coscinodiscus wailesii

Key Differences

• Blackboard Tree is Least Concern while Diatom is Not Evaluated.

Taxonomic Classification

Rank	Blackboard Tree	Diatom
Kingdom	Plantae (Plants)	Chromista (Chromista)
Phylum	Magnoliophyta (Flowering Plants)	Ochrophyta (Ochrophyta)
Class	Magnoliopsida (Dicots)	Bacillariophyceae (Bacillariophyceae)
Order	Gentianales (Gentianales)	Coscinodiscales (Coscinodiscales)
Family	Apocynaceae	Coscinodiscaceae
Genus	Alstonia	Coscinodiscus
Species	Alstonia scholaris	Coscinodiscus wailesii

Conservation Status

Blackboard Tree

LC — Least Concern

Diatom

NE — Not Evaluated

Physical Characteristics

Attribute	Blackboard Tree	Diatom
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.

Diatom

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (10 countries), North America (Mexico, United States), and South America (Argentina, 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