Ashen Woodwax
VU

Ashen Woodwax

Hygrophorus mesotephrus

Unknown

Photo: iNaturalist: (c) Federico Calledda, some rights reserved (CC BY-NC), uploaded by Federico Calledda

Overview

The Ashen Woodwax is a distinctive grayish mushroom species with a waxy, smooth cap surface and white to pale yellow gills that typically grows 3-8 cm in diameter. This mycorrhizal fungus forms essential symbiotic relationships with coniferous trees, particularly spruce and fir, facilitating nutrient exchange that supports forest ecosystem health. As a decomposer and nutrient cycler, it plays a crucial role in maintaining soil fertility in temperate and boreal forest communities.

Ashen Woodwax faces significant threats from habitat loss due to deforestation and forest degradation, which reduces the availability of suitable mycorrhizal host trees essential for its survival. Climate change poses additional risks by altering temperature and moisture regimes that this fungus depends on for fruiting and spore dispersal. Air pollution and acid deposition may also negatively impact both the fungus and its symbiotic tree partners.

Threat summary

Habitat

Ashen Woodwax occurs in temperate and boreal coniferous forests, forming ectomycorrhizal associations primarily with spruce, fir, and pine trees. The species typically fruits in moist, acidic soils of mature forest ecosystems at various elevations.

TERRESTRIAL· major

Frequently asked questions

Why is Ashen Woodwax classified as Vulnerable?
Ashen Woodwax is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Ashen Woodwax faces significant threats from habitat loss due to deforestation and forest degradation, which reduces the availability of suitable mycorrhizal host trees essential for its survival. Climate change poses additional risks by altering temperature and moisture regimes that this fungus depends on for fruiting and spore dispersal. Air pollution and acid deposition may also negatively impact both the fungus and its symbiotic tree partners.
Where does Ashen Woodwax live?
Ashen Woodwax 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 Ashen Woodwax?
The main threats to Ashen Woodwax 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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