Mushrooms in Washtenaw County, Michigan
Updated October 2026 · from open GBIF records
1,900mushroom records
731species recorded
Octbusiest month
1,900 records since 1869 (451 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:
Crowded Parchment Stereum complicatum3 January records since 2011
Usually recorded in February here:
Turkeytail Trametes versicolor3 February records since 2011
Milk-White Toothed Polypore Irpex lacteus2 February records since 2011
Usually recorded in March here:
Rosy Crust Peniophora incarnata2 March records across all years
Merismodes anomala2 March records across all years
Pear-Shaped Puffball Apioperdon pyriforme2 March records across all years
Common Porecrust, Split Gill Fungus Schizophyllum commune2 March records across all years
Usually recorded in April here:
Dryad's Saddle Cerioporus squamosus10 April records since 2011- Turkeytail Trametes versicolor8 April records since 2011
Golden Oyster Mushroom Pleurotus citrinopileatus6 April records since 2011
Deadly Galerina Galerina marginata3 April records since 2011- Common Porecrust, Split Gill Fungus Schizophyllum commune3 April records since 2011
Usually recorded in May here:
- Dryad's Saddle Cerioporus squamosus32 May records since 2011
- Golden Oyster Mushroom Pleurotus citrinopileatus11 May records since 2011
Chicken Of The Woods Laetiporus sulphureus4 May records since 2011
Fairies' Bonnets Coprinellus disseminatus3 May records since 2011
Northern Cinnabar Polypore Trametes cinnabarina3 May records since 2011
Glistening Ink-Cap Coprinellus micaceus3 May records since 2011- Pear-Shaped Puffball Apioperdon pyriforme2 May records since 2011
Diamond Polypore Neofavolus alveolaris2 May records since 2011
Crown-Tipped Coral Artomyces pyxidatus2 May records since 2011- Common Porecrust, Split Gill Fungus Schizophyllum commune2 May records since 2011
Usually recorded in June here:
- Golden Oyster Mushroom Pleurotus citrinopileatus12 June records since 2011
- Dryad's Saddle Cerioporus squamosus6 June records since 2011
- Crown-Tipped Coral Artomyces pyxidatus3 June records since 2011
Oyster Mushroom Pleurotus ostreatus2 June records since 2011- Glistening Ink-Cap Coprinellus micaceus2 June records since 2011
- Chicken Of The Woods Laetiporus sulphureus2 June records since 2011
Protohydnum album2 June records since 2011
Usually recorded in July here:
- Golden Oyster Mushroom Pleurotus citrinopileatus5 July records since 2011
- Fairies' Bonnets Coprinellus disseminatus3 July records since 2011
- Protohydnum album3 July records since 2011
Gyroporus borealis2 July records since 2011
Reddish Brown Bitter Bolete Tylopilus rubrobrunneus2 July records since 2011- Crown-Tipped Coral Artomyces pyxidatus2 July records since 2011
White Coral Jelly Fungus Sebacina sparassoidea2 July records since 2011
Ghost Chanterelle Cantharellus phasmatis2 July records since 2011
Usually recorded in August here:
- Dryad's Saddle Cerioporus squamosus17 August records since 2011
- Fairies' Bonnets Coprinellus disseminatus6 August records since 2011
- Golden Oyster Mushroom Pleurotus citrinopileatus5 August records since 2011
- Turkeytail Trametes versicolor3 August records since 2011
Orange Mycena Mycena leaiana2 August records since 2011
Common Earthball Scleroderma citrinum2 August records since 2011- Chicken Of The Woods Laetiporus sulphureus2 August records since 2011
Ganoderma resinaceum2 August records since 2011
Usually recorded in September here:
- Dryad's Saddle Cerioporus squamosus7 September records since 2011
- Chicken Of The Woods Laetiporus sulphureus5 September records since 2011
Jack O Lantern Omphalotus illudens3 September records since 2011- Golden Oyster Mushroom Pleurotus citrinopileatus3 September records since 2011
Perenniporia ohiensis2 September records since 2011
Lawyer's Wig Coprinus comatus2 September records since 2011
Giant Puffball Calvatia gigantea2 September records since 2011- Fairies' Bonnets Coprinellus disseminatus2 September records since 2011
Usually recorded in October here:
- Lawyer's Wig Coprinus comatus8 October records since 2011
- Pear-Shaped Puffball Apioperdon pyriforme6 October records since 2011
- Giant Puffball Calvatia gigantea5 October records since 2011
- Fairies' Bonnets Coprinellus disseminatus4 October records since 2011
Elm Leech Hypsizygus ulmarius4 October records since 2011
Fly Agaric Amanita muscaria4 October records since 2011
Late Fall Polypore Ischnoderma resinosum3 October records since 2011- Chicken Of The Woods Laetiporus sulphureus3 October records since 2011
- Common Porecrust, Split Gill Fungus Schizophyllum commune3 October records since 2011
- Fungi Pallidohirschioporus biformis2 October records since 2011
Aborted Entoloma, Shrimp Of The Woods Entoloma abortivum2 October records since 2011
Velvet Shank Flammulina velutipes2 October records since 2011
Usually recorded in November here:
- Mycena fagetorum6 November records across all years
Crowned Earthstar Geastrum coronatum3 November records across all years- Corticium lacteum3 November records across all years
Granulobasidium vellereum2 November records across all years
Stringy Butt Rot Poriella subacida2 November records across all years
Cinnamon Bracket Hapalopilus rutilans2 November records across all years
Usually recorded in December here:
- Crowded Parchment Stereum complicatum2 December records since 2011
⚠ 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 | 77 | |
| 2 | 42 | |
| 3 | 42 | |
| 4 | 24 | |
| 5 | 22 | |
| 6 | 18 | |
| 7 | 13 | |
| 8 | 13 | |
| 9 | 13 | |
| 10 | 12 | |
| 11 | 12 | |
| 12 | 12 | |
| 13 | 11 | |
| 14 | 10 | |
| 15 | 10 |
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: Oct, Jul, Sep.
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 10 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
Oct 3, 2026Hen Of The Woods Grifola frondosanear Ann Arbor, MI · iNaturalist photo, research grade · original record - 2Sep 12, 2026Jack O Lantern Omphalotus illudensnear Ann Arbor, MI · iNaturalist photo, research grade · original record
- 3
Sep 12, 2026Lactarius psammicolain Nelson Meade County Farm Park, MI · iNaturalist photo, research grade · original record - 4Sep 12, 2026Jack O Lantern Omphalotus illudensin Nelson Meade County Farm Park, MI · iNaturalist photo, research grade · original record
- 5Sep 10, 2026Turkeytail Trametes versicolornear Ann Arbor, MI · iNaturalist photo, research grade · original record
- 6Sep 5, 2026Golden Oyster Mushroom Pleurotus citrinopileatusnear Ann Arbor, MI · iNaturalist photo, research grade · original record
- 7
Sep 5, 2026Blue Lactarius Lactarius indigonear Chelsea, MI · iNaturalist photo, research grade · original record - 8Aug 30, 2026Dryad's Saddle Cerioporus squamosusnear Ann Arbor, MI · iNaturalist photo, research grade · original record
- 9Aug 23, 2026Dryad's Saddle Cerioporus squamosusnear Ypsilanti, MI · iNaturalist photo, research grade · original record
- 10Aug 23, 2026Golden Oyster Mushroom Pleurotus citrinopileatusnear Ypsilanti, MI · 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
1,900 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 1,198 CC0 and 702 CC BY 4.0. See about the data for the full citation.