Gastroboletus turbinatus
Family Boletaceae · Updated October 2026
129US records
6states
Sepbusiest month
129 US records since 1928 (29 in the last 10 years)
Last seen Jun 19, 2025 (about 16 months ago) near Trinidad, Humboldt County, CA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California, Washington and Oregon, and the busiest months are Sep, Aug and Jul. (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, Jul.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| California | 85 | Jun 19, 2025 |
| Washington | 15 | Jul 24, 2004 |
| Oregon | 14 | Oct 5, 2024 |
| Idaho | 13 | Jul 7, 1980 |
| Illinois | 1 | Sep 30, 2000 |
| Missouri | 1 | 1928-08 |
Top counties
- Sierra County, CA (26) · latest Oct 15, 1995
- Humboldt County, CA (14) · latest Jun 19, 2025
- Bonner County, ID (7) · latest Jul 7, 1980
- Alpine County, CA (6) · latest Jul 22, 2024
- Siskiyou County, CA (6) · latest Oct 12, 2024
- Fresno County, CA (6) · latest Oct 8, 2023
- Shasta County, CA (6) · latest Jul 27, 1977
- Snohomish County, WA (6) · latest Aug 31, 1999
- Nevada County, CA (5) · latest Jul 14, 2024
- Benton County, OR (5) · latest Sep 22, 1976
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.