Ridged Tooth vs Rosette Tooth

Hydnellum scrobiculatum compared with Hydnellum cumulatum

Key Differences

• Ridged Tooth is Data Deficient while Rosette Tooth is Critically Endangered.

Taxonomic Classification

Rank	Ridged Tooth	Rosette 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 scrobiculatum	Hydnellum cumulatum

Evolutionary Relationship

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

Conservation Status

Ridged Tooth

DD — Data Deficient

Rosette Tooth

CR — Critically Endangered

Physical Characteristics

Attribute	Ridged Tooth	Rosette Tooth
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ridged Tooth

Habitat

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

Range

Found across Europe (5 countries) and North America (United States).

Rosette Tooth

Habitat

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

Range

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

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden