Truncocolumella citrina
Family Suillaceae · Updated October 2026
97US records
7states
Octbusiest month
97 US records since 1934 (16 in the last 10 years)
Last seen Oct 31, 2025 (about 12 months ago) in Salt Point State Park, CA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from Oregon, Washington and California, 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 |
|---|---|---|
| Oregon | 34 | Nov 3, 2022 |
| Washington | 29 | Aug 12, 2023 |
| California | 15 | Oct 31, 2025 |
| Colorado | 12 | Aug 29, 2021 |
| Montana | 3 | Aug 3, 1989 |
| Idaho | 2 | Jul 28, 1964 |
| Arizona | 2 | Aug 22, 2024 |
Top counties
- Benton County, OR (9) · latest Oct 25, 2020
- Mendocino County, CA (8) · latest Oct 8, 2025
- Douglas County, OR (8) · latest Nov 6, 1937
- Jefferson County, CO (6) · latest Aug 29, 2021
- Linn County, OR (5) · latest Oct 12, 2018
- Clackamas County, OR (4) · latest Sep 25, 2003
- Pierce County, WA (4) · latest Sep 16, 1948
- Lane County, OR (3) · latest Nov 3, 2022
- Skamania County, WA (3) · latest Aug 12, 2023
- Snohomish County, WA (3) · latest Oct 14, 1979
More on this species from GBIF.
Bring along
🍄
Regional mushroom field guideSee on Amazon🍄
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.