Rosette Tooth vs Zoned Tooth

Hydnellum cumulatum compared with Hydnellum concrescens

Key Differences

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

Taxonomic Classification

Rank	Rosette Tooth	Zoned 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 cumulatum	Hydnellum concrescens

Evolutionary Relationship

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

Conservation Status

Rosette Tooth

CR — Critically Endangered

Zoned Tooth

DD — Data Deficient

Physical Characteristics

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

Habitat & Geographic Range

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.

Zoned Tooth

Habitat

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

Range

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

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden