Black-Staining Polypore
Meripilus sumstinei · Family Meripilaceae · Updated October 2026
1,042US records
32states
Julbusiest month
1,042 US records since 1904 (852 in the last 10 years)
Last seen Sep 30, 2026 (about 4 weeks ago) near Gresham Park, DeKalb County, GA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from New Jersey, Pennsylvania and Virginia, and the busiest months are Jul, Aug and Jun. (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: Jul, Aug, Jun.
Where it's recorded
Top counties
- Montgomery County, MD (46) · latest Aug 6, 2026
- District of Columbia, DC (46) · latest Sep 22, 2025
- Fairfax County, VA (41) · latest Sep 9, 2026
- Sussex County, NJ (37) · latest Jul 9, 2024
- Brown County, IN (37) · latest Aug 3, 2026
- Ocean County, NJ (29) · latest Oct 26, 2019
- Mercer County, NJ (27) · latest Oct 14, 2021
- Morris County, NJ (26) · latest Jul 18, 2025
- Burlington County, NJ (20) · latest Jul 9, 2023
- Philadelphia County, PA (18) · latest Sep 19, 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.