Stuntz's Great Ringless Amanita
Amanita pachycolea · Family Amanitaceae · Updated October 2026
151US records
8states
Novbusiest month
151 US records since 1958 (80 in the last 10 years)
Last seen Sep 15, 2026 (about 6 weeks ago) in Arcata Community Forest, 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 Nov, Oct and Dec. (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.
☠ Dangerous genus. The genus Amanita includes death cap and destroying angels. Mushrooms in this group have caused serious or fatal poisonings.
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: Nov, Oct, Dec.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| California | 82 | Sep 15, 2026 |
| Washington | 27 | Jul 17, 2026 |
| Oregon | 26 | Dec 11, 2025 |
| Oklahoma | 9 | Sep 21, 2002 |
| Colorado | 3 | Aug 9, 2013 |
| Idaho | 2 | Jun 29, 2025 |
| Minnesota | 1 | Sep 6, 2007 |
| Florida | 1 | – |
Top counties
- Mendocino County, CA (21) · latest Dec 4, 2017
- San Mateo County, CA (11) · latest Jan 26, 2026
- Marin County, CA (11) · latest Dec 12, 2025
- Pontotoc County, OK (9) · latest Sep 21, 2002
- Lane County, OR (8) · latest Nov 11, 2022
- Sonoma County, CA (8) · latest Nov 24, 2024
- Humboldt County, CA (7) · latest Sep 15, 2026
- Clallam County, WA (6) · latest Oct 9, 2025
- Santa Cruz County, CA (5) · latest Jan 2, 2025
- Benton County, OR (5) · latest Nov 18, 2023
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.