Bitter Tooth vs Blackboard Tree

Hydnellum scabrosum compared with Alstonia scholaris

Key Differences

• Bitter Tooth is Near Threatened while Blackboard Tree is Least Concern.

Taxonomic Classification

Rank	Bitter Tooth	Blackboard Tree
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Basidiomycota (Club Fungi)	Magnoliophyta (Flowering Plants)
Class	Agaricomycetes (Mushrooms)	Magnoliopsida (Dicots)
Order	Thelephorales (Thelephorales)	Gentianales (Gentianales)
Family	Bankeraceae	Apocynaceae
Genus	Hydnellum	Alstonia
Species	Hydnellum scabrosum	Alstonia scholaris

Conservation Status

Bitter Tooth

NT — Near Threatened

Blackboard Tree

LC — Least Concern

Physical Characteristics

Attribute	Bitter Tooth	Blackboard Tree
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bitter Tooth

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Denmark, Norway, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Bitter Tooth

The Bitter Tooth (Hydnellum scabrosum) is a species in the genus Hydnellum. It is currently classified as Near Threatened on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

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.