Blackboard Tree vs Granular dogfish

Alstonia scholaris compared with Centroscyllium granulatum

Key Differences

• Blackboard Tree is Least Concern while Granular dogfish is Vulnerable.

Taxonomic Classification

Rank	Blackboard Tree	Granular dogfish
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Elasmobranchii
Order	Gentianales (Gentianales)	Squaliformes (Squaliformes)
Family	Apocynaceae	Etmopteridae
Genus	Alstonia	Centroscyllium
Species	Alstonia scholaris	Centroscyllium granulatum

Conservation Status

Blackboard Tree

LC — Least Concern

Granular dogfish

VU — Vulnerable

Physical Characteristics

Attribute	Blackboard Tree	Granular dogfish
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.

Granular dogfish

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Chile. Currently classified as Vulnerable 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.