Mushrooms in DuPage County, Illinois
Updated October 2026 · from open GBIF records
871mushroom records
261species recorded
Sepbusiest month
871 records since 1892 (306 in the last 10 years)
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.
Usually recorded in January here:
- Acanthophysium oakesii2 January records across all years
Too few past records in February here to list species.
Usually recorded in March here:
Common Porecrust, Split Gill Fungus Schizophyllum commune5 March records across all years
Brown Cubical Rot Of Birch Fomitopsis betulina3 March records across all years
Milk-White Toothed Polypore Irpex lacteus2 March records across all years
Usually recorded in April here:
Dryad's Saddle Cerioporus squamosus5 April records across all years
Artist's Bracket Ganoderma applanatum2 April records across all years
Plantpot Dapperling Leucocoprinus birnbaumii2 April records across all years- Acanthophysium oakesii2 April records across all years
- Milk-White Toothed Polypore Irpex lacteus2 April records across all years
Usually recorded in May here:
- Dryad's Saddle Cerioporus squamosus8 May records across all years
Rusty Porecrust Fuscoporia ferruginosa4 May records across all years
Crown-Tipped Coral Artomyces pyxidatus4 May records across all years
Diamond Polypore Neofavolus alveolaris3 May records across all years
Turkeytail Trametes versicolor3 May records across all years
Usually recorded in June here:
Protohydnum album4 June records across all years
Pale Brittlestem Candolleomyces candolleanus4 June records across all years
Jellied False Coral Sebacina schweinitzii2 June records across all years- Turkeytail Trametes versicolor2 June records across all years
Usually recorded in July here:
Sessile Earthstar Geastrum saccatum13 July records across all years
Golden Bracket Fuscoporia gilva4 July records across all years
Cinnamon Bracket Hapalopilus rutilans4 July records across all years
Chanterelle Cantharellus cibarius4 July records across all years- Cycloderma indicum2 July records across all years
- Marasmius tritici2 July records across all years
Ruby Bolete Hortiboletus rubellus2 July records across all years- Jellied False Coral Sebacina schweinitzii2 July records across all years
- Phanerochaete affinis2 July records across all years
Sessile Earthstar Geastrum fimbriatum2 July records across all years
Northern Cinnabar Polypore Trametes cinnabarina2 July records across all years- Artist's Bracket Ganoderma applanatum2 July records across all years
Usually recorded in August here:
- Sessile Earthstar Geastrum saccatum4 August records across all years
- Protohydnum album4 August records across all years
Chicken Of The Woods Laetiporus sulphureus3 August records across all years- Milk-White Toothed Polypore Irpex lacteus3 August records across all years
Weeping Widow Lacrymaria lacrymabunda3 August records across all years- Diamond Polypore Neofavolus alveolaris3 August records across all years
Thelephora vialis2 August records across all years
Blushing Rosette Abortiporus biennis2 August records across all years- Vitreoporus dichrous2 August records across all years
- Geastrum smardae2 August records across all years
- Marasmius calopus2 August records across all years
Poplar Bracket Oxyporus populinus2 August records across all years
Usually recorded in September here:
- Dryad's Saddle Cerioporus squamosus8 September records since 2011
Jack O Lantern Omphalotus illudens4 September records since 2011
Giant Puffball Calvatia gigantea4 September records since 2011- Common Porecrust, Split Gill Fungus Schizophyllum commune4 September records since 2011
Crowded Parchment Stereum complicatum3 September records since 2011
Hen Of The Woods Grifola frondosa3 September records since 2011
Fairies' Bonnets Coprinellus disseminatus3 September records since 2011
Lawyer's Wig Coprinus comatus3 September records since 2011
Fly Agaric Amanita muscaria3 September records since 2011- Chicken Of The Woods Laetiporus sulphureus3 September records since 2011
- Fungi Pallidohirschioporus biformis2 September records since 2011
Usually recorded in October here:
- Giant Puffball Calvatia gigantea6 October records since 2011
- Chicken Of The Woods Laetiporus sulphureus4 October records since 2011
Eastern Stinkhorn Phallus ravenelii3 October records since 2011- Turkeytail Trametes versicolor3 October records since 2011
- Hen Of The Woods Grifola frondosa3 October records since 2011
- Crowded Parchment Stereum complicatum2 October records since 2011
- Milk-White Toothed Polypore Irpex lacteus2 October records since 2011
Purple-And-White Deceiver Laccaria ochropurpurea2 October records since 2011
Common Bird's Nest Crucibulum laeve2 October records since 2011
Hare'Sfoot Inkcap Coprinopsis lagopus2 October records since 2011
Elm Leech Hypsizygus ulmarius2 October records since 2011
Usually recorded in November here:
- Milk-White Toothed Polypore Irpex lacteus4 November records since 2011
- Turkeytail Trametes versicolor3 November records since 2011
Deer-Colored Trametes Trametopsis cervina2 November records since 2011- Fungi Pallidohirschioporus biformis2 November records since 2011
Pear-Shaped Puffball Apioperdon pyriforme2 November records since 2011
Usually recorded in December here:
Phylloporia ribis3 December records across all years- Milk-White Toothed Polypore Irpex lacteus2 December records across all years
- Dryad's Saddle Cerioporus squamosus2 December records across all years
⚠ Never eat a wild mushroom based on this site. We show where fungi have been recorded, nothing more. We never say any mushroom is edible or safe, and you shouldn't decide that from any website, app or photo. Many deadly mushrooms look like harmless ones. If someone may have eaten a wild mushroom, call Poison Control at 1-800-222-1222 right away.
Most-recorded species
| # | Species | Records |
|---|---|---|
| 1 | 33 | |
| 2 | 27 | |
| 3 | 20 | |
| 4 | 18 | |
| 5 | 17 | |
| 6 | 16 | |
| 7 | 13 | |
| 8 | 13 | |
| 9 | 12 | |
| 10 | 11 | |
| 11 | 11 | |
| 12 | 11 | |
| 13 | 9 | |
| 14 | 9 | |
| 15 | 9 |
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: Sep, Aug, 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.
- 1Sep 28, 2026Dryad's Saddle Cerioporus squamosusnear Oak Brook, IL · iNaturalist photo, research grade · original record
- 2Sep 28, 2026Fungi Pallidohirschioporus biformisnear Oak Brook, IL · iNaturalist photo, research grade · original record
- 3
Jul 11, 2026Destroying Angel Amanita bisporigeranear Bensenville, IL (location blurred by the observer) · iNaturalist photo, research grade · original record - 4Jun 27, 2026Milk-White Toothed Polypore Irpex lacteusnear Naperville, IL (location blurred by the observer) · iNaturalist photo, research grade · original record
- 5Jun 14, 2026Pale Brittlestem Candolleomyces candolleanusnear Lombard, IL · iNaturalist photo, research grade · original record
- 6
May 11, 2026Goldenhaired Inkcap Parasola auricomanear Lisle, IL · iNaturalist photo, research grade · original record - 7
May 2, 2026Shaggy Parasol Chlorophyllum rhacodesnear Woodridge, IL (location blurred by the observer) · iNaturalist photo, research grade · original record - 8
Apr 18, 2026Spring Polypore Lentinus arculariusnear Naperville, IL (location blurred by the observer) · iNaturalist photo, research grade · original record - 9Apr 18, 2026Dryad's Saddle Cerioporus squamosusnear Woodridge, IL (location blurred by the observer) · iNaturalist photo, research grade · original record
Many sightings are on private land. Always get the landowner's permission, and follow the rules of parks and forests, which often limit or ban collecting.
Bring along
🍄
Regional mushroom field guideSee on Amazon🍄
Folding mushroom knife with brushSee on Amazon🍄
Wicker foraging basketSee on Amazon🍄
10x hand lens / loupeSee on Amazon🍄
Spore print paperSee on AmazonAs an Amazon Associate we earn from qualifying purchases.
How we built this page
871 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 598 CC0 and 273 CC BY 4.0. See about the data for the full citation.