Perenniporia ohiensis
Family Polyporaceae · Updated October 2026
280US records
25states
Sepbusiest month
280 US records since 1879 (34 in the last 10 years)
Last seen Sep 26, 2026 (about 4 weeks ago) near Chicago, Cook County, IL, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from Ohio, Illinois and Indiana, and the busiest months are Sep, Aug and Oct. (Data as of October 26, 2026; records can lag by weeks.)
⚠ 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.
Lookalike warning. Many mushrooms, including deadly ones, closely resemble each other, and the only reliable identification comes from an expert looking at the actual specimen (often with spore prints or microscopy). Never use a name, photo or record count on this page to decide what something is.
When it's recorded
Records by month, all years. Busiest: Sep, Aug, Oct.
Where it's recorded
Top counties
- Hamilton County, OH (25) · latest Sep 26, 1965
- Cook County, IL (17) · latest Sep 26, 2026
- DeKalb County, IL (13) · latest Jul 25, 2006
- Porter County, IN (11) · latest Aug 21, 2007
- Brown County, IN (10) · latest Aug 8, 2025
- Alachua County, FL (9) · latest Sep 3, 1954
- Clermont County, OH (9) · latest Nov 30, 1935
- Champaign County, IL (8) · latest 1975-09
- Wayne County, NY (7) · latest 1887-12
- Cass County, ND (6) · latest 1921-09
More on this species from GBIF.
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.