Mushrooms in Williamson County, Illinois
Fruiting now
Based on past sightings (mostly since 2011; all years where recent records are few), not a forecast. Weather and place matter a lot, and a listing here says nothing about whether a mushroom is safe.
Too few past records in January here to list species.
Usually recorded in February here:
Golden Bracket Fuscoporia gilva2 February records across all years
Usually recorded in March here:
Purplepore Bracket Trichaptum abietinum4 March records across all years
Meruliopsis taxicola2 March records across all years
Usually recorded in April here:
- Fungi Pallidohirschioporus biformis5 April records across all years
Botryobasidium vagum4 April records across all years
Robust Bracket Fomitiporia robusta2 April records across all years
Mossy Maze Polypore Cerrena unicolor2 April records across all years
Cratered Duster Amphinema byssoides2 April records across all years
Trechispora farinacea2 April records across all years
Annosus Root Disease Heterobasidion annosum2 April records across all years
Too few past records in May here to list species.
Too few past records in June here to list species.
Usually recorded in July here:
Artist's Bracket Ganoderma applanatum2 July records across all years
Common Bird's Nest Crucibulum laeve2 July records across all years
Lacquered Bracket Ganoderma lucidum2 July records across all years
Usually recorded in August here:
- Rhizoctonia bataticola3 August records across all years
Fluted Bird's Nest Cyathus striatus2 August records across all years
Usually recorded in September here:
- Leucocoprinus rubrotinctus2 September records across all years
Common Puffball Lycoperdon perlatum2 September records across all years- Boidinia furfuracea2 September records across all years
Purple-And-White Deceiver Laccaria ochropurpurea2 September records across all years- Annosus Root Disease Heterobasidion annosum2 September records across all years
Usually recorded in October here:
Sickener Russula emetica2 October records across all years
Cecilia's Ringless Amanita Amanita ceciliae2 October records across all years
False Deathcap Amanita citrina2 October records across all years
Caesar Amanita caesarea2 October records across all years- Purple-And-White Deceiver Laccaria ochropurpurea2 October records across all years
Usually recorded in November here:
- Chromosera cyanophylla3 November records across all years
Bohemian Truffle Pisolithus arhizus2 November records across all years
Slippery Jack Suillus luteus2 November records across all years
Too few past records in December here to list species.
Most-recorded species
| # | Species | Records |
|---|---|---|
| 1 | 7 | |
| 2 | 6 | |
| 3 | 5 | |
| 4 | 5 | |
| 5 | 4 | |
| 6 | 4 | |
| 7 | 4 | |
| 8 | 4 | |
| 9 | 4 | |
| 10 | 4 | |
| 11 | 4 | |
| 12 | 3 | |
| 13 | 3 | |
| 14 | 3 | |
| 15 | 3 |
Being on this list doesn't mean a mushroom is common, easy to identify or safe. It only means it has been recorded here often.
Best months to look
Records by month, all years. Busiest: Nov, Sep, Oct.
Sightings map
● Each dot is a place with at least one record (rounded to about 1 km). Locations can be approximate, and many are on private land. Numbered blue circles are recent sightings, shown only to a general area of about 10 km.
Recent sightings
The 9 most recent dated records in this county, newest first. Data as of October 26, 2026. Records can take weeks or more to reach GBIF, so the newest finds may not show yet. Places are given only as a public park or forest (from the USGS Protected Areas Database) or the nearest town, and the numbered circles on the map cover a general area, not an exact spot.
- 1
Jul 5, 2026Black-Staining Polypore Meripilus sumstineiin Crab Orchard National Wildlife Refuge, IL · iNaturalist photo, research grade · original record - 2
May 18, 2025Devil's Dipstick Mutinus elegansnear Makanda, IL (location blurred by the observer) · iNaturalist photo, research grade · original record - 3
May 18, 2025Jellied False Coral Sebacina schweinitziinear Goreville, IL (location blurred by the observer) · iNaturalist photo, research grade · original record - 4
Nov 29, 2024Aborted Entoloma, Shrimp Of The Woods Entoloma abortivumin Crab Orchard National Wildlife Refuge, IL · iNaturalist photo, research grade · original record - 5
Jul 15, 2024Blue Lactarius Lactarius indigoin Crab Orchard National Wildlife Refuge, IL · iNaturalist photo, research grade · original record - 6
Mar 16, 2023Common Porecrust, Split Gill Fungus Schizophyllum communenear Marion, IL (location blurred by the observer) · iNaturalist photo, research grade · original record - 7
Aug 29, 2020Berkeley's Polypore Bondarzewia berkeleyiin Crab Orchard National Wildlife Refuge, IL · iNaturalist photo, research grade · original record - 8
Aug 29, 2020Sessile Earthstar Geastrum saccatumin Crab Orchard National Wildlife Refuge, IL · iNaturalist photo, research grade · original record - 9
Jun 29, 1993Old Man Of The Woods Strobilomyces strobilaceusin or near Crab Orchard Wildlife Refuge, IL (location blurred by the observer) · museum/herbarium specimen (ILLS) · original record
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How we built this page
284 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 276 CC0 and 8 CC BY 4.0. See about the data for the full citation.