Cay Sua vs Red Beard Lichen

Alstonia scholaris compared with Usnea rubicunda

Key Differences

Cay Sua is Least Concern while Red Beard Lichen is Not Evaluated.

Taxonomic Classification

Rank	Cay Sua	Red Beard Lichen
Kingdom	Plantae (thực vật)	Fungi (nấm)
Phylum	Magnoliophyta (Flowering Plants)	Ascomycota (Sac Fungi)
Class	Magnoliopsida (Dicots)	Lecanoromycetes (Lecanoromycetes)
Order	Gentianales (Bộ Long đởm)	Lecanorales (Lecanorales)
Family	Apocynaceae	Parmeliaceae
Genus	Alstonia	Usnea
Species	Alstonia scholaris	Usnea rubicunda

Conservation Status

Cay Sua

LC — Least Concern

Red Beard Lichen

NE — Not Evaluated

Physical Characteristics

Attribute	Cay Sua	Red Beard Lichen
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.

Red Beard Lichen

Habitat

Native to Asia and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (Norway, Portugal, Sweden), North America (United States), and South America (Colombia).

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.