Bitter Tooth vs California alder

Hydnellum scabrosum compared with Alnus rhombifolia

Key Differences

• Bitter Tooth is Near Threatened while California alder is Least Concern.

Taxonomic Classification

Rank	Bitter Tooth	California alder
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Basidiomycota (Club Fungi)	Magnoliophyta (Flowering Plants)
Class	Agaricomycetes (Mushrooms)	Magnoliopsida (Dicots)
Order	Thelephorales (Thelephorales)	Fagales (Beeches & Oaks)
Family	Bankeraceae	Betulaceae
Genus	Hydnellum	Alnus
Species	Hydnellum scabrosum	Alnus rhombifolia

Conservation Status

Bitter Tooth

NT — Near Threatened

California alder

LC — Least Concern

Physical Characteristics

Attribute	Bitter Tooth	California alder
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.

California alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found in Canada.

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.

California alder

The California alder (Alnus rhombifolia) is a species in the genus Alnus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.