Russula pseudotsugarum
Family Russulaceae · Updated October 2026
72US records
3states
Octbusiest month
72 US records since 1976 (9 in the last 10 years)
Last seen Oct 16, 2025 (about 12 months ago) near Port Angeles, Clallam County, WA, a preserved specimen in INSDC Sequences. Most US records come from Washington, California and Oregon, and the busiest months are Oct, Nov and Sep. (Data as of October 26, 2026; records can lag by weeks.)
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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, Nov, Sep.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| Washington | 61 | Oct 16, 2025 |
| California | 7 | Jan 5, 2025 |
| Oregon | 4 | Oct 13, 2018 |
Top counties
- Jefferson County, WA (16) · latest Nov 11, 2001
- King County, WA (10) · latest Oct 9, 2005
- Thurston County, WA (9) · latest Nov 11, 1999
- Pierce County, WA (9) · latest Oct 9, 2005
- Kittitas County, WA (9) · latest Oct 11, 1992
- Marin County, CA (3) · latest Jan 5, 2025
- Lewis County, WA (3) · latest Oct 22, 1977
- Lincoln County, OR (2) · latest Nov 12, 1983
- Humboldt County, CA (2) · latest Nov 28, 1999
- Clallam County, WA (2) · latest Oct 16, 2025
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.