Mossy Maze Polypore
Cerrena unicolor · Family Cerrenaceae · Updated October 2026
1,632US records
46states
Augbusiest month
1,632 US records since 1876 (354 in the last 10 years)
Last seen Sep 28, 2026 (about 4 weeks ago) near Winton, Lake County, MN, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from New Jersey, New York and Pennsylvania, and the busiest months are Aug, Oct and Sep. (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: Aug, Oct, Sep.
Where it's recorded
Top counties
- Tompkins County, NY (42) · latest Oct 31, 2024
- Hamilton County, OH (40) · latest Oct 23, 2023
- Sussex County, NJ (37) · latest Sep 28, 2019
- Ocean County, NJ (30) · latest Oct 26, 2019
- Dane County, WI (28) · latest Dec 31, 2025
- Kitsap County, WA (27) · latest Aug 6, 1910
- Riley County, KS (27) · latest Sep 10, 2023
- Mercer County, NJ (27) · latest May 4, 2019
- Bonner County, ID (25) · latest Sep 26, 1970
- Hennepin County, MN (24) · latest Sep 28, 2026
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.