Bitter Knight vs

Tricholoma acerbum compared with Tricholoma frondosae

Key Differences

• Bitter Knight is Endangered while is Least Concern.

Taxonomic Classification

Rank	Bitter Knight
Kingdom same	Fungi (เห็ดรา)	Fungi (เห็ดรา)
Phylum same	Basidiomycota (Club Fungi)	Basidiomycota (Club Fungi)
Class same	Agaricomycetes (Mushrooms)	Agaricomycetes (Mushrooms)
Order same	Agaricales (Gilled Mushrooms)	Agaricales (Gilled Mushrooms)
Family same	Tricholomataceae	Tricholomataceae
Genus same	Tricholoma	Tricholoma
Species	Tricholoma acerbum	Tricholoma frondosae

Evolutionary Relationship

Bitter Knight and share a common ancestor at the Genus level: Tricholoma.

Conservation Status

Bitter Knight

EN — Endangered

LC — Least Concern

Physical Characteristics

Attribute	Bitter Knight
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bitter Knight

Habitat

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

Range

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

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Bitter Knight

The Bitter Knight (Tricholoma acerbum) is a species in the genus Tricholoma. It is currently classified as Endangered on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

Tricholoma frondosae is a robust, fibrous mushroom related to the knight mushrooms, with a grey-brown cap and an association with birch trees. It grows in birch-dominated forests and mixed deciduous woodlands across northern and temperate Europe. This ectomycorrhizal fungus forms mutualistic partnerships with birch root systems.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden