Source-reviewed species profile

Yellow stainer Agaricus xanthodermus

Rapid chrome-yellow staining at the stem base and often an inky or phenolic smell when heated. This profile covers broad field features, season and habitat for learning.

Where can I find yellow stainer?

Gardens, parks, lawns and deciduous woodland on nutrient-rich soil.

In Mycoverse you can select Yellow stainer and compare candidate search areas using a species-specific assessment of rainfall, estimated soil moisture, temperature, forest type, tree signals, canopy cover, terrain and season. Where source coverage is available, the assessment also uses historical species observations. Historical observations are historical data, not recent finds.

Learning content – not identification

Images, text and app suggestions cannot confirm a species or food safety.

Field features

  • Rapid chrome-yellow staining at the stem base and often an inky or phenolic smell when heated.

Habitat and search guidance

Gardens, parks, lawns and deciduous woodland on nutrient-rich soil.

Months

June–November

Safety status

Poisonous species. This profile is safety education and must not be used to approve a finding.

Sources and review status

Last reviewed: 30 September 2026.

Take the profile outdoors.

Follow the species, view local seasonal signals and use field guidance in the app.