Lepista sordida is known for forming fairy rings, circles of fruiting bodies that expand outward over time. This blewit mushroom belongs to the family Tricholomataceae in the order Agaricales, within the phylum Basidiomycota.
The species was formerly placed in the genus Collybia as Collybia sordida, and some older references still use that name. It is found across the Northern Hemisphere.
For anyone interested in fungi, its circular growth patterns and long history of naming make it a useful example of how fungal classification has changed.
Distribution and Habitat
Lepista sordida is found across the Northern Hemisphere. Its sightings are concentrated in autumn, peaking sharply in October and November, with a smaller rise in September.
These sightings show when and where people have found the mushroom, not how common it is across its range. The autumn peak is the clearest seasonal pattern in the data available for this species.

Photos
Photographs from via iNaturalist, licensed under CC0 1.0., by JCorven via iNaturalist, licensed under CC BY 4.0., by Colleen Davis via iNaturalist, licensed under CC BY 4.0., by ikelman via iNaturalist, licensed under CC BY 4.0., by Philip Stepnowski via iNaturalist, licensed under CC BY 4.0., by Andre Saibra via iNaturalist, licensed under CC BY 4.0., by Владимир Дворкин via iNaturalist, licensed under CC BY 4.0., and by rafa perazzolo via iNaturalist, licensed under CC BY 4.0., credited on each photo.
Ecology and classification
Classification
- Phylum
- Basidiomycota
- Class
- Agaricomycetes
- Order
- Agaricales
- Family
- Tricholomataceae
- Genus
- Lepista
- Species
- Lepista sordida
Sources
- GBIF Species names and classification
- iNaturalist Photos
- Wikidata Common names and conservation status
- Wikipedia Summary extract



