Russula viridofusca
Family Russulaceae · Updated October 2026
59US records
3states
Octbusiest month
59 US records since 1976 (1 in the last 10 years)
Last seen Oct 12, 2018 (about 8 years ago) near Lyons, Linn County, OR, a preserved specimen in Field Museum of Natural History (Botany) Fungi Collection. Most US records come from Washington, Oregon and Idaho, and the busiest months are Oct, Sep and Nov. (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, Nov.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| Washington | 56 | Sep 23, 2007 |
| Oregon | 2 | Oct 12, 2018 |
| Idaho | 1 | Sep 5, 2008 |
Top counties
- King County, WA (17) · latest Sep 23, 2007
- Snohomish County, WA (12) · latest Sep 25, 2005
- Grays Harbor County, WA (11) · latest Oct 24, 2004
- Kittitas County, WA (7) · latest Sep 23, 2007
- Clallam County, WA (6) · latest Oct 22, 2004
- Pierce County, WA (1) · latest Nov 16, 1996
- Linn County, OR (1) · latest Oct 12, 2018
- Valley County, ID (1) · latest Sep 5, 2008
- Lewis County, WA (1) · latest Nov 16, 1996
- Tillamook County, OR (1) · latest Nov 13, 1976
More on this species from GBIF.
Bring along
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Spore print paperSee on AmazonAs an Amazon Associate we earn from qualifying purchases.