Beech Knight vs Coalman

Tricholoma sciodes compared with Tricholoma portentosum

Key Differences

• Beech Knight is Least Concern while Coalman is Data Deficient.

Taxonomic Classification

Rank	Beech Knight	Coalman
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
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 sciodes	Tricholoma portentosum

Evolutionary Relationship

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

Conservation Status

Beech Knight

LC — Least Concern

Coalman

DD — Data Deficient

Physical Characteristics

Attribute	Beech Knight	Coalman
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Beech Knight

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Coalman

Habitat

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

Range

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

Beech Knight

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

Coalman

Tricholoma portentosum, commonly called the coalman or soapy knight, is a large, prized edible mushroom in the family Tricholomataceae forming ectomycorrhizal associations with conifers, especially pines and spruces, across temperate forests of Europe and North America. The fruiting body features a grey to blackish fibrous cap 6–12 centimeters in diameter with a wavy, often undulating margin, white to pale yellow gills with a slightly soapy odour, and a white stem with grey streaks. It typically fruits in autumn in pine forests and mixed coniferous-deciduous woodland, where its underground mycorrhizal network supports tree health and nutrient uptake. Tricholoma portentosum is considered a fine edible species in several European countries, particularly in Spain, Poland, and Italy, where it is collected commercially and sold in markets. The genus Tricholoma contains numerous similar grey or silvery species, making field identification challenging and requiring careful attention to habitat, odour, and microscopic features. The species is classified as Data Deficient by the IUCN, reflecting insufficient baseline population data to determine whether it is declining. Broader declines in fruiting body abundance of ectomycorrhizal fungi across Europe have been documented through long-term monitoring, attributed primarily to atmospheric nitrogen deposition altering forest nitrogen dynamics.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden