Bitter Tooth vs

Hydnellum scabrosum compared with Hydnellum compactum

Key Differences

• Bitter Tooth is Near Threatened while is Vulnerable.

Taxonomic Classification

Rank	Bitter Tooth
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Basidiomycota (Club Fungi)	Basidiomycota (Club Fungi)
Class same	Agaricomycetes (Mushrooms)	Agaricomycetes (Mushrooms)
Order same	Thelephorales (Thelephorales)	Thelephorales (Thelephorales)
Family same	Bankeraceae	Bankeraceae
Genus same	Hydnellum	Hydnellum
Species	Hydnellum scabrosum	Hydnellum compactum

Evolutionary Relationship

Bitter Tooth and share a common ancestor at the Genus level: Hydnellum.

Conservation Status

Bitter Tooth

NT — Near Threatened

VU — Vulnerable

Physical Characteristics

Attribute	Bitter Tooth
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.

Habitat

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

Range

Distributed across Belgium, Norway, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Hydnellum compactum is a stipitate, tooth fungus with a compact, brownish-orange to rusty-brown cap surface covered in spines on the underside. It grows on the forest floor in coniferous forests across Europe and parts of North America, forming ectomycorrhizal associations with trees. This fungus obtains nutrients by forming mutualistic partnerships with the roots of pine, spruce, and fir trees.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden