Thaxterogaster montanus
Family Cortinariaceae · Updated October 2026
40US records
7states
Octbusiest month
40 US records since 1945 (5 in the last 10 years)
Last seen Oct 24, 2023 (about 3 years ago) in Lane County, OR, a preserved specimen in INSDC Sequences. Most US records come from Washington, Oregon and Idaho, and the busiest months are Oct, Sep and Aug. (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: Oct, Sep, Aug.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| Washington | 23 | Oct 16, 2010 |
| Oregon | 5 | Oct 24, 2023 |
| Idaho | 3 | Sep 24, 1966 |
| Tennessee | 3 | Aug 11, 1953 |
| California | 2 | Nov 7, 2009 |
| Michigan | 2 | Aug 1, 1967 |
| Kansas | 2 | – |
Top counties
- Clallam County, WA (6) · latest Oct 28, 2001
- Lane County, OR (5) · latest Oct 24, 2023
- Snohomish County, WA (5) · latest Oct 16, 2010
- Pierce County, WA (5) · latest Sep 8, 1948
- Sevier County, TN (3) · latest Aug 11, 1953
- Lewis County, WA (3) · latest 1948-09
- Bonner County, ID (2) · latest Sep 24, 1966
- Wabaunsee County, KS (2)
- King County, WA (2) · latest Nov 1, 2003
- Mendocino County, CA (1) · latest Oct 27, 1962
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.