Bitter Knight vs Blushing Rosette

Tricholoma acerbum compared with Abortiporus biennis

Key Differences

• Bitter Knight is Endangered while Blushing Rosette is Near Threatened.

Taxonomic Classification

Rank	Bitter Knight	Blushing Rosette
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Basidiomycota (Club Fungi)	Basidiomycota (Club Fungi)
Class same	Agaricomycetes (Mushrooms)	Agaricomycetes (Mushrooms)
Order	Agaricales (Gilled Mushrooms)	Polyporales (Polyporales)
Family	Tricholomataceae	Podoscyphaceae
Genus	Tricholoma	Abortiporus
Species	Tricholoma acerbum	Abortiporus biennis

Evolutionary Relationship

Bitter Knight and Blushing Rosette share a common ancestor at the Class level: Agaricomycetes. (Mushrooms)

Conservation Status

Bitter Knight

EN — Endangered

Blushing Rosette

NT — Near Threatened

Physical Characteristics

Attribute	Bitter Knight	Blushing Rosette
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.

Blushing Rosette

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Brazil). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Blushing Rosette

The Blushing Rosette (Abortiporus biennis) is a species in the genus Abortiporus. It is currently classified as Near Threatened on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden