Ganoderma Butt Rot
Ganoderma zonatum · Family Polyporaceae · Updated October 2026
236US records
5states
Augbusiest month
236 US records since 1888 (91 in the last 10 years)
Last seen Feb 7, 2026 (about 9 months ago) in Highlands County, FL, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from Florida, South Carolina and Texas, and the busiest months are Aug, Sep 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: Aug, Sep, Jun.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| Florida | 221 | Feb 7, 2026 |
| South Carolina | 6 | Sep 6, 2025 |
| Texas | 5 | Jun 20, 1964 |
| Louisiana | 3 | 1936-10 |
| North Carolina | 1 | Jul 2, 2016 |
Top counties
- Highlands County, FL (32) · latest Feb 7, 2026
- Seminole County, FL (19) · latest Feb 9, 2025
- Volusia County, FL (15) · latest Jun 5, 2024
- Brevard County, FL (14) · latest Oct 19, 2020
- Sarasota County, FL (13) · latest Apr 26, 2023
- Alachua County, FL (13) · latest Sep 12, 2016
- Broward County, FL (13) · latest May 29, 2025
- Miami-Dade County, FL (12) · latest Apr 29, 2024
- Hillsborough County, FL (10) · latest Jul 5, 2023
- Polk County, FL (10) · latest May 15, 2025
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.