Cortinarius pinetorum
Family Cortinariaceae · Updated October 2026
30US records
8states
Sepbusiest month
30 US records since 1948 (0 in the last 10 years)
Last seen 2011-10 () near Idanha, Marion County, OR, a preserved specimen in University of British Columbia Herbarium (UBC) - Fungi Collection. Most US records come from Washington, Colorado and Idaho, and the busiest months are Sep, Aug and Oct. (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 Cortinarius includes webcaps containing orellanine. 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: Sep, Aug, Oct.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| Washington | 12 | Sep 4, 1999 |
| Colorado | 6 | Aug 26, 1978 |
| Idaho | 4 | Sep 15, 1968 |
| California | 2 | Sep 21, 1989 |
| Montana | 2 | Oct 1, 1978 |
| Oregon | 2 | 2011-10 |
| Michigan | 1 | Sep 21, 1950 |
| Utah | 1 | May 31, 2001 |
Top counties
- Skagit County, WA (5) · latest Sep 4, 1999
- Bonner County, ID (4) · latest Sep 15, 1968
- Pierce County, WA (4) · latest Oct 25, 1997
- Pitkin County, CO (3) · latest Aug 26, 1978
- Sanders County, MT (2) · latest Oct 1, 1978
- Emmet County, MI (1) · latest Sep 21, 1950
- Amador County, CA (1) · latest Sep 21, 1989
- Mendocino County, CA (1) · latest Oct 18, 1975
- Rich County, UT (1) · latest May 31, 2001
- Marion County, OR (1) · latest 2011-10
More on this species from GBIF.
Bring along
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Folding mushroom knife with brushSee on Amazon🍄
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10x hand lens / loupeSee on Amazon🍄
Spore print paperSee on AmazonAs an Amazon Associate we earn from qualifying purchases.