Cay Sua vs Devil's backbone

Alstonia scholaris compared with Kalanchoe daigremontiana

Key Differences

• Cay Sua is Least Concern while Devil's backbone is Not Evaluated.

Taxonomic Classification

Rank	Cay Sua	Devil's backbone
Kingdom same	Plantae (thực vật)	Plantae (thực vật)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Gentianales (Bộ Long đởm)	Saxifragales (Bộ Tai hùm)
Family	Apocynaceae	Crassulaceae
Genus	Alstonia	Kalanchoe
Species	Alstonia scholaris	Kalanchoe daigremontiana

Evolutionary Relationship

Cay Sua and Devil's backbone share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Cay Sua

LC — Least Concern

Devil's backbone

NE — Not Evaluated

Physical Characteristics

Attribute	Cay Sua	Devil's backbone
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cay Sua

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.

Devil's backbone

Habitat

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

Range

Widely distributed across Africa (Mauritius, South Africa), Asia (Taiwan), Europe (Italy, Portugal, Spain), North America (5 countries), Oceania and the Pacific (Marshall Islands), and South America (Colombia, Peru, Venezuela).

Cay Sua

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