Blackboard Tree vs Gharial

Alstonia scholaris compared with Gavialis gangeticus

Key Differences

Blackboard Tree is Least Concern while Gharial is Critically Endangered.

Taxonomic Classification

Rank	Blackboard Tree	Gharial
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Reptilia (Reptiles)
Order	Gentianales (Gentianales)	Crocodylia (Crocodilians)
Family	Apocynaceae	Crocodylidae (Crocodiles)
Genus	Alstonia	Crocodylus (True Crocodiles)
Species	Alstonia scholaris	Gavialis gangeticus

Conservation Status

Blackboard Tree

LC — Least Concern

Gharial

CR — Critically Endangered

Population: ~650

Trend: Increasing ↑

Physical Characteristics

Attribute	Blackboard Tree	Gharial
Diet	—	Carnivore
Average Lifespan	—	60 years
Average Length	—	5.0 m
Average Weight	—	200.0 kg

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.

Gharial

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical coniferous forests, and temperate broadleaf and mixed forests, among 6 distinct biome types spanning the Indomalayan and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across India and Nepal. Currently classified as Critically 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.