EN

Russule sanguine des marais

Russula helodes

Unknown

Overview

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

Russula helodes faces severe decline due to the destruction and degradation of its specialized wetland habitats, particularly through drainage of marshes and bogs for agricultural conversion and urban development. Climate change poses an additional threat by altering the hydrology of remaining wetland systems, potentially making them unsuitable for this moisture-dependent fungus. The species' narrow ecological requirements and limited dispersal ability make it particularly vulnerable to habitat fragmentation.

Threat summary

Habitat

This specialized fungus occurs exclusively in acidic wetland environments, particularly sphagnum bogs, marshes, and wet heathlands with consistently high moisture levels. It forms mycorrhizal associations with specific tree and shrub species in these waterlogged, nutrient-poor ecosystems.

TERRESTRIAL· major

Other threatened species in Russulaceae

Amethyst BrittlegillCR

Amethyst Brittlegill

Russula amethystina

Unknown
Russule noircieCR

Russule noircie

Russula seperina

Unknown
Hintapink BrittlegillEN

Hintapink Brittlegill

Russula paludosa

Unknown
EN

Russule rose bonbon

Russula veternosa

Unknown

Threatened in Austria

Calidris ferrugineaVU

Calidris ferruginea

Declining
VU

Large Tree-chernes

Dendrochernes cyrneus

Unknown
VU

Olive Skipper

Pyrgus serratulae

Unknown
SandoldenborreCR

Sandoldenborre

Hoplia graminicola

Unknown

Frequently asked questions

Why is Russule sanguine des marais classified as Endangered?
Russule sanguine des marais is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Russula helodes faces severe decline due to the destruction and degradation of its specialized wetland habitats, particularly through drainage of marshes and bogs for agricultural conversion and urban development. Climate change poses an additional threat by altering the hydrology of remaining wetland systems, potentially making them unsuitable for this moisture-dependent fungus. The species' narrow ecological requirements and limited dispersal ability make it particularly vulnerable to habitat fragmentation.
Where does Russule sanguine des marais live?
Russule sanguine des marais occurs in Austria, Canada, Czechia, Denmark, Estonia, and Finland (plus 8 other countries). Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Russule sanguine des marais?
The main threats to Russule sanguine des marais 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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