Tulosesus impatiens
Family Psathyrellaceae · Updated October 2026
48US records
6states
Janbusiest month
48 US records since 1945 (30 in the last 10 years)
Last seen May 2, 2026 (about 6 months ago) near Pollock Pines, El Dorado 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 Idaho, and the busiest months are Jan, Nov 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.
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: Jan, Nov, Dec.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| California | 35 | May 2, 2026 |
| Washington | 9 | Nov 16, 1974 |
| Idaho | 1 | Oct 5, 1966 |
| Illinois | 1 | Jun 25, 1980 |
| Tennessee | 1 | Oct 31, 2011 |
| Kansas | 1 | Oct 13, 1970 |
Top counties
- Sonoma County, CA (15) · latest Dec 13, 2025
- San Juan County, WA (6) · latest Nov 16, 1974
- Marin County, CA (4) · latest Nov 20, 2022
- San Mateo County, CA (2) · latest Nov 28, 2024
- Los Angeles County, CA (2) · latest Apr 7, 2023
- King County, WA (2) · latest Sep 28, 1945
- Alameda County, CA (2) · latest Dec 17, 2025
- El Dorado County, CA (2) · latest May 2, 2026
- San Francisco County, CA (1) · latest Oct 16, 1981
- Bonner County, ID (1) · latest Oct 5, 1966
More on this species from GBIF.
Bring along
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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.