Mushrooms in Iowa County, Wisconsin
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.
Too few past records in February here to list species.
Too few past records in March here to list species.
Usually recorded in April here:
Dryad's Saddle Cerioporus squamosus2 April records since 2011
False Turkeytail Stereum lobatum2 April records since 2011
Usually recorded in May here:
- Dryad's Saddle Cerioporus squamosus11 May records across all years
Earth-Fan Thelephora terrestris2 May records across all years
Golden Oyster Mushroom Pleurotus citrinopileatus2 May records across all years
Usually recorded in June here:
- Rhizoctonia anceps4 June records across all years
- Golden Oyster Mushroom Pleurotus citrinopileatus2 June records across all years
Usually recorded in July here:
- Golden Oyster Mushroom Pleurotus citrinopileatus7 July records since 2011
Crown-Tipped Coral Artomyces pyxidatus2 July records since 2011
Usually recorded in August here:
Brown Cubical Rot Of Birch Fomitopsis betulina2 August records since 2011- Golden Oyster Mushroom Pleurotus citrinopileatus2 August records since 2011
Crowded Parchment Stereum complicatum2 August records since 2011
Orange Mycena Mycena leaiana2 August records since 2011- Poronidulus conchifer2 August records since 2011
Black-Stalked Marasmius Tetrapyrgos nigripes2 August records since 2011
Jack O Lantern Omphalotus illudens2 August records since 2011
Usually recorded in September here:
Aborted Entoloma, Shrimp Of The Woods Entoloma abortivum4 September records since 2011
Clustered Bonnet Mycena inclinata2 September records since 2011
Lumpy Bracket Trametes gibbosa2 September records since 2011
Jelly Rot Phlebia tremellosa2 September records since 2011
Chicken Of The Woods Laetiporus sulphureus2 September records since 2011
Pear-Shaped Puffball Apioperdon pyriforme2 September records since 2011- Brown Cubical Rot Of Birch Fomitopsis betulina2 September records since 2011
- Vitreoporus dichrous2 September records since 2011
Late Fall Polypore Ischnoderma resinosum2 September records since 2011
Turkeytail Trametes versicolor2 September records since 2011
Too few past records in October here to list species.
Too few past records in November here to list species.
Too few past records in December here to list species.
Most-recorded species
| # | Species | Records |
|---|---|---|
| 1 | 15 | |
| 2 | 14 | |
| 3 | 7 | |
| 4 | 5 | |
| 5 | 5 | |
| 6 | 5 | |
| 7 | 4 | |
| 8 | 4 | |
| 9 | 4 | |
| 10 | 4 | |
| 11 | 3 | |
| 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: Sep, Aug, Jul.
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.
- 1Jul 6, 2026Crown-Tipped Coral Artomyces pyxidatusnear Ridgeway, WI · iNaturalist photo, research grade · original record
- 2
Jun 30, 2026Common Porecrust, Split Gill Fungus Schizophyllum communenear Dodgeville, WI · iNaturalist photo, research grade · original record - 3Jun 28, 2026Golden Oyster Mushroom Pleurotus citrinopileatusnear Ridgeway, WI · iNaturalist photo, research grade · original record
- 4Jun 14, 2026Crown-Tipped Coral Artomyces pyxidatusnear Arena, WI (location blurred by the observer) · iNaturalist photo, research grade · original record
- 5Apr 29, 2026Golden Oyster Mushroom Pleurotus citrinopileatusnear Hollandale, WI (location blurred by the observer) · iNaturalist photo, research grade · original record
- 6Oct 12, 2025Late Fall Polypore Ischnoderma resinosumnear Barneveld, WI (location blurred by the observer) · iNaturalist photo, research grade · original record
- 7Jul 4, 2025Golden Oyster Mushroom Pleurotus citrinopileatusnear Dodgeville, WI (location blurred by the observer) · iNaturalist photo, research grade · original record
- 8Jul 4, 2025Golden Oyster Mushroom Pleurotus citrinopileatusin Governor Dodge State Park, WI · iNaturalist photo, research grade · original record
- 9Jul 4, 2025Golden Oyster Mushroom Pleurotus citrinopileatusin Governor Dodge State Park, WI · iNaturalist photo, research grade · original record
- 10Jul 4, 2025Golden Oyster Mushroom Pleurotus citrinopileatusin Governor Dodge State Park, WI · iNaturalist photo, research grade · original record
Bring along
As an Amazon Associate we earn from qualifying purchases.
How we built this page
156 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 50 CC0 and 106 CC BY 4.0. See about the data for the full citation.