Blackboard Tree vs Cramp Balls

Alstonia scholaris compared with Daldinia concentrica

Key Differences

Blackboard Tree is Least Concern while Cramp Balls is Vulnerable.

Taxonomic Classification

Rank	Blackboard Tree	Cramp Balls
Kingdom	Plantae (植物)	Fungi (菌界)
Phylum	Magnoliophyta (被子植物門)	Ascomycota (子嚢菌門)
Class	Magnoliopsida (モクレン綱)	Sordariomycetes (フンタマカビ綱)
Order	Gentianales (リンドウ目)	Xylariales (マメザヤタケ目)
Family	Apocynaceae	Hypoxylaceae
Genus	Alstonia	Daldinia
Species	Alstonia scholaris	Daldinia concentrica

Conservation Status

Blackboard Tree

LC — Least Concern

Cramp Balls

VU — Vulnerable

Physical Characteristics

Attribute	Blackboard Tree	Cramp Balls
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.

Cramp Balls

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Brazil). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.