Yellow Staining Knight
CR

Yellow Staining Knight

Tricholoma sulphurescens

Unknown

Photo: Photo: Wikimedia Commons, CC BY-SA

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

The Yellow Staining Knight faces severe population declines due to widespread habitat destruction and degradation of its specialized forest ecosystems. Climate change is altering the delicate soil chemistry and mycorrhizal relationships essential for this fungus, while pollution and forest fragmentation further threaten remaining populations.

Threat summary

Habitat

Deciduous and mixed woodlands, particularly beech and oak forests with rich, calcareous soils. Forms mycorrhizal associations with broadleaf trees in mature forest ecosystems across temperate regions.

TERRESTRIAL· major

Other threatened species in Tricholomataceae

Aromatic KnightCR

Aromatic Knight

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White WebcapCR

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Lentil ShankletVU

Lentil Shanklet

Collybia tuberosa

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Willow Bonnet

Mycenella salicina

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Frequently asked questions

Why is Yellow Staining Knight classified as Critically Endangered?
Yellow Staining Knight is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. The Yellow Staining Knight faces severe population declines due to widespread habitat destruction and degradation of its specialized forest ecosystems. Climate change is altering the delicate soil chemistry and mycorrhizal relationships essential for this fungus, while pollution and forest fragmentation further threaten remaining populations.
Where does Yellow Staining Knight live?
Yellow Staining Knight occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Yellow Staining Knight?
The main threats to Yellow Staining Knight are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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