An Eyebright vs Cay Sua

Euphrasia stricta compared with Alstonia scholaris

Taxonomic Classification

Rank	An Eyebright	Cay Sua
Kingdom same	Plantae (thực vật)	Plantae (thực vật)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Lamiales (Bộ Hoa môi)	Gentianales (Bộ Long đởm)
Family	Orobanchaceae	Apocynaceae
Genus	Euphrasia	Alstonia
Species	Euphrasia stricta	Alstonia scholaris

Evolutionary Relationship

An Eyebright and Cay Sua share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

An Eyebright

LC — Least Concern

Cay Sua

LC — Least Concern

Physical Characteristics

Attribute	An Eyebright	Cay Sua
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

An Eyebright

Habitat

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

Range

Found across Europe (6 countries) and North America (Canada, United States).

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.

An Eyebright

The An Eyebright (Euphrasia stricta) is a species in the genus Euphrasia. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

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 1 countries:

🇺🇸 United States