Bitter Tooth vs Fly Agaric

Hydnellum scabrosum compared with Amanita muscaria

Key Differences

• Bitter Tooth is Near Threatened while Fly Agaric is Least Concern.

Taxonomic Classification

Rank	Bitter Tooth	Fly Agaric
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Basidiomycota (Club Fungi)	Basidiomycota (Club Fungi)
Class same	Agaricomycetes (Mushrooms)	Agaricomycetes (Mushrooms)
Order	Thelephorales (Thelephorales)	Agaricales (Gilled Mushrooms)
Family	Bankeraceae	Agaricaceae (Agarics)
Genus	Hydnellum	Amanita (Amanitas)
Species	Hydnellum scabrosum	Amanita muscaria

Evolutionary Relationship

Bitter Tooth and Fly Agaric share a common ancestor at the Class level: Agaricomycetes. (Mushrooms)

Conservation Status

Bitter Tooth

NT — Near Threatened

Fly Agaric

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	Bitter Tooth	Fly Agaric
Diet	—	Decomposer
Average Lifespan	—	1 years
Average Length	—	20 cm
Average Weight	—	100 g

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.

Fly Agaric

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), Oceania and the Pacific (New Zealand), and South America (Brazil, Chile, Colombia).

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.

Fly Agaric

A amanita-das-moscas (Amanita muscaria) é um dos fungos mais icônicos e reconhecíveis da Terra, exibindo chapéus vermelhos marcantes com verrugas brancas nos bosques boreais do hemisfério norte. Apesar de sua aparência de conto de fadas, contém potentes compostos psicoativos como muscimol e ácido iboténico, sendo moderadamente tóxico. Forma simbioses micorrízicas essenciais com bétulas, pinheiros e abetos, trocando nutrientes minerais por carbono e desempenhando papéis fundamentais na ciclagem de nutrientes nas florestas boreais.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden