Cay Sua vs Threeleaf Halberd Fern

Alstonia scholaris compared with Tectaria trifoliata

Key Differences

• Cay Sua is Least Concern while Threeleaf Halberd Fern is Near Threatened.

Taxonomic Classification

Rank	Cay Sua	Threeleaf Halberd Fern
Kingdom same	Plantae (thực vật)	Plantae (thực vật)
Phylum	Magnoliophyta (Flowering Plants)	Tracheophyta
Class	Magnoliopsida (Dicots)	Polypodiopsida (Lớp Dương xỉ)
Order	Gentianales (Bộ Long đởm)	Polypodiales (Bộ Dương xỉ)
Family	Apocynaceae	Tectariaceae
Genus	Alstonia	Tectaria
Species	Alstonia scholaris	Tectaria trifoliata

Evolutionary Relationship

Cay Sua and Threeleaf Halberd Fern share a common ancestor at the Kingdom level: Plantae. (thực vật)

Conservation Status

Cay Sua

LC — Least Concern

Threeleaf Halberd Fern

NT — Near Threatened

Physical Characteristics

Attribute	Cay Sua	Threeleaf Halberd Fern
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.

Threeleaf Halberd Fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Distributed across Brazil, Colombia, and Cuba. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.