Cortinarius vanduzerensis
Family Cortinariaceae · Updated October 2026
96US records
5states
Novbusiest month
96 US records since 1948 (2 in the last 10 years)
Last seen Jun 30, 2021 (about 5 years ago) in Camden Hills State Park, ME, a preserved specimen in Duke University Herbarium Fungal Collection. Most US records come from Washington, Oregon and California, 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 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: Nov, Oct, Dec.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| Washington | 50 | Dec 12, 2018 |
| Oregon | 30 | Oct 30, 2005 |
| California | 14 | Dec 23, 2011 |
| Tennessee | 1 | Sep 27, 2009 |
| Maine | 1 | Jun 30, 2021 |
Top counties
- Tillamook County, OR (17) · latest Oct 30, 2005
- Clallam County, WA (15) · latest Nov 8, 2000
- Grays Harbor County, WA (11) · latest Dec 12, 2018
- Mendocino County, CA (8) · latest Oct 25, 1986
- Jefferson County, WA (7) · latest Oct 20, 2001
- Snohomish County, WA (7) · latest Sep 18, 2004
- Humboldt County, CA (5) · latest Dec 23, 2011
- Coos County, OR (5) · latest Oct 24, 1986
- Pierce County, WA (4) · latest Oct 5, 1997
- Lincoln County, OR (4) · latest Nov 12, 1994
More on this species from GBIF.
Bring along
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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.