Blackboard Tree vs floating crystalwort

Alstonia scholaris compared with Riccia fluitans

Key Differences

• Blackboard Tree is Least Concern while floating crystalwort is Near Threatened.

Taxonomic Classification

Rank	Blackboard Tree	floating crystalwort
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Magnoliophyta (Flowering Plants)	Marchantiophyta (liverwort)
Class	Magnoliopsida (Dicots)	Marchantiopsida (Marchantiopsida)
Order	Gentianales (Gentianales)	Marchantiales (Marchantiales)
Family	Apocynaceae	Ricciaceae
Genus	Alstonia	Riccia
Species	Alstonia scholaris	Riccia fluitans

Evolutionary Relationship

Blackboard Tree and floating crystalwort share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Blackboard Tree

LC — Least Concern

floating crystalwort

NT — Near Threatened

Physical Characteristics

Attribute	Blackboard Tree	floating crystalwort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

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.

floating crystalwort

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (7 countries), North America (United States), and South America (Chile). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Shared Countries

Both species can be found in 2 countries:

🇹🇼 Taiwan 🇺🇸 United States