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Mushrooms in Wisconsin
Updated October 2026 · from open GBIF records
11,573mushroom records
23county pages
Sepbusiest month
11,573 records since 1840 (4,520 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 in this state:
Milk-White Toothed Polypore Irpex lacteus10 January records across all years
Turkeytail Trametes versicolor9 January records across all years
Brown Cubical Rot Of Birch Fomitopsis betulina9 January records across all years- Fungi Pallidohirschioporus biformis6 January records across all years
Usually recorded in February in this state:
- Turkeytail Trametes versicolor10 February records since 2011
- Milk-White Toothed Polypore Irpex lacteus9 February records since 2011
Common Porecrust, Split Gill Fungus Schizophyllum commune7 February records since 2011
Velvet Shank Flammulina velutipes6 February records since 2011
Dryad's Saddle Cerioporus squamosus5 February records since 2011
Usually recorded in March in this state:
- Common Porecrust, Split Gill Fungus Schizophyllum commune21 March records since 2011
- Turkeytail Trametes versicolor19 March records since 2011
Crowded Parchment Stereum complicatum15 March records since 2011
Ceramic Parchment Xylobolus frustulatus14 March records since 2011
Red Tree Brain Fungus Peniophora rufa11 March records since 2011- Milk-White Toothed Polypore Irpex lacteus8 March records since 2011
- Poronidulus conchifer8 March records since 2011
Bitter Oysterling Panellus stipticus8 March records since 2011
Usually recorded in April in this state:
- Dryad's Saddle Cerioporus squamosus30 April records since 2011
- Turkeytail Trametes versicolor28 April records since 2011
- Common Porecrust, Split Gill Fungus Schizophyllum commune11 April records since 2011
- Brown Cubical Rot Of Birch Fomitopsis betulina9 April records since 2011
- Ceramic Parchment Xylobolus frustulatus7 April records since 2011
- Red Tree Brain Fungus Peniophora rufa5 April records since 2011
Usually recorded in May in this state:
- Dryad's Saddle Cerioporus squamosus152 May records since 2011
Golden Oyster Mushroom Pleurotus citrinopileatus39 May records since 2011- Turkeytail Trametes versicolor21 May records since 2011
- Common Porecrust, Split Gill Fungus Schizophyllum commune14 May records since 2011
Diamond Polypore Neofavolus alveolaris13 May records since 2011
Chicken Of The Woods Laetiporus sulphureus10 May records since 2011
Glistening Ink-Cap Coprinellus micaceus10 May records since 2011- Milk-White Toothed Polypore Irpex lacteus8 May records since 2011
Usually recorded in June in this state:
- Golden Oyster Mushroom Pleurotus citrinopileatus66 June records since 2011
Crown-Tipped Coral Artomyces pyxidatus34 June records since 2011- Dryad's Saddle Cerioporus squamosus27 June records since 2011
- Common Porecrust, Split Gill Fungus Schizophyllum commune14 June records since 2011
Protohydnum album14 June records since 2011
Feltscale Inky Cap Coprinopsis variegata10 June records since 2011
Orange Mycena Mycena leaiana10 June records since 2011- Chicken Of The Woods Laetiporus sulphureus7 June records since 2011
Usually recorded in July in this state:
- Golden Oyster Mushroom Pleurotus citrinopileatus42 July records since 2011
- Crown-Tipped Coral Artomyces pyxidatus32 July records since 2011
- Protohydnum album29 July records since 2011
- Dryad's Saddle Cerioporus squamosus14 July records since 2011
- Common Porecrust, Split Gill Fungus Schizophyllum commune13 July records since 2011
Jellied False Coral Sebacina schweinitzii12 July records since 2011- Chicken Of The Woods Laetiporus sulphureus10 July records since 2011
Fly Agaric Amanita muscaria9 July records since 2011
Usually recorded in August in this state:
- Chicken Of The Woods Laetiporus sulphureus39 August records since 2011
- Crown-Tipped Coral Artomyces pyxidatus28 August records since 2011
- Dryad's Saddle Cerioporus squamosus24 August records since 2011
- Golden Oyster Mushroom Pleurotus citrinopileatus24 August records since 2011
- Orange Mycena Mycena leaiana19 August records since 2011
Northern Tooth Climacodon septentrionalis17 August records since 2011- Turkeytail Trametes versicolor16 August records since 2011
Jack O Lantern Omphalotus illudens12 August records since 2011
Usually recorded in September in this state:
Late Fall Polypore Ischnoderma resinosum36 September records since 2011
Pear-Shaped Puffball Apioperdon pyriforme34 September records since 2011
Aborted Entoloma, Shrimp Of The Woods Entoloma abortivum31 September records since 2011- Dryad's Saddle Cerioporus squamosus28 September records since 2011
- Turkeytail Trametes versicolor26 September records since 2011
- Chicken Of The Woods Laetiporus sulphureus23 September records since 2011
- Fly Agaric Amanita muscaria21 September records since 2011
- Brown Cubical Rot Of Birch Fomitopsis betulina19 September records since 2011
Usually recorded in October in this state:
- Dryad's Saddle Cerioporus squamosus30 October records since 2011
Giant Puffball Calvatia gigantea30 October records since 2011- Late Fall Polypore Ischnoderma resinosum25 October records since 2011
Jelly Rot Phlebia tremellosa19 October records since 2011- Pear-Shaped Puffball Apioperdon pyriforme15 October records since 2011
Lawyer's Wig Coprinus comatus15 October records since 2011- Brown Cubical Rot Of Birch Fomitopsis betulina14 October records since 2011
- Fly Agaric Amanita muscaria13 October records since 2011
Usually recorded in November in this state:
- Turkeytail Trametes versicolor11 November records since 2011
- Pear-Shaped Puffball Apioperdon pyriforme7 November records since 2011
- Common Porecrust, Split Gill Fungus Schizophyllum commune7 November records since 2011
Deadly Galerina Galerina marginata5 November records since 2011- Velvet Shank Flammulina velutipes5 November records since 2011
Usually recorded in December in this state:
- Turkeytail Trametes versicolor24 December records across all years
- Common Porecrust, Split Gill Fungus Schizophyllum commune15 December records across all years
- Milk-White Toothed Polypore Irpex lacteus8 December records across all years
Spreading Phlebia Phlebia radiata7 December records across all years
Mossy Maze Polypore Cerrena unicolor7 December records across all years
Willow Glue Hydnoporia tabacina6 December records across all years- Fungi Pallidohirschioporus biformis6 December records across all years
- Vitreoporus dichrous6 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.
Often-recorded species
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Ranked by how often each appears in county top-40 lists. This is a guide to what gets recorded, not to what is common or safe.
Best months to look
Records by month, all years. Busiest: Sep, Aug, Oct.
Counties
Counties with fewer than 100 records (49) are listed here without their own page.
| County | Records |
|---|---|
| Dane County | 2,780 |
| Sauk County | 761 |
| Bayfield County | 621 |
| Portage County | 614 |
| Waukesha County | 556 |
| Walworth County | 490 |
| Milwaukee County | 454 |
| Adams County | 308 |
| Jefferson County | 299 |
| Washington County | 280 |
| Vilas County | 264 |
| La Crosse County | 256 |
| Richland County | 240 |
| Sawyer County | 237 |
| Ashland County | 205 |
| Columbia County | 197 |
| Door County | 157 |
| Iowa County | 156 |
| Forest County | 154 |
| Oneida County | 152 |
| Douglas County | 126 |
| Juneau County | 118 |
| Polk County | 102 |
| Grant County | 87 |
| Dodge County | 85 |
| Chippewa County | 83 |
| Marathon County | 80 |
| Vernon County | 77 |
| Washburn County | 77 |
| Burnett County | 76 |
| Lincoln County | 76 |
| Brown County | 76 |
| Pierce County | 75 |
| Manitowoc County | 72 |
| Trempealeau County | 62 |
| Fond du Lac County | 54 |
| Green County | 54 |
| Racine County | 53 |
| Oconto County | 52 |
| Rusk County | 50 |
| Wood County | 46 |
| Sheboygan County | 46 |
| Langlade County | 44 |
| Price County | 42 |
| Ozaukee County | 42 |
| Rock County | 40 |
| Kenosha County | 39 |
| Menominee County | 37 |
| Marinette County | 36 |
| Marquette County | 35 |
| Iron County | 34 |
| Lafayette County | 32 |
| St. Croix County | 29 |
| Dunn County | 29 |
| Kewaunee County | 29 |
| Winnebago County | 29 |
| Green Lake County | 28 |
| Florence County | 27 |
| Waushara County | 25 |
| Waupaca County | 22 |
| Crawford County | 21 |
| Outagamie County | 20 |
| Taylor County | 17 |
| Barron County | 16 |
| Monroe County | 15 |
| Jackson County | 15 |
| Eau Claire County | 14 |
| Buffalo County | 13 |
| Shawano County | 13 |
| Clark County | 10 |
| Calumet County | 7 |
| Pepin County | 5 |
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.