Pungent Slippery Jack
Suillus pungens · Family Suillaceae · Updated October 2026
305US records
5states
Decbusiest month
305 US records since 1960 (225 in the last 10 years)
Last seen Jan 22, 2026 (about 9 months ago) near Loma Mar, San Mateo County, CA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California, Colorado and Oregon, and the busiest months are Dec, Jan 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: Dec, Jan, Nov.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| California | 301 | Jan 22, 2026 |
| Colorado | 1 | Aug 15, 2014 |
| Oregon | 1 | Nov 6, 1997 |
| New York | 1 | Sep 11, 1965 |
| Kansas | 1 | Jul 15, 2004 |
Top counties
- San Francisco County, CA (54) · latest Dec 25, 2024
- Contra Costa County, CA (47) · latest Jan 4, 2026
- San Mateo County, CA (41) · latest Jan 22, 2026
- Marin County, CA (33) · latest Jan 15, 2025
- Alameda County, CA (28) · latest Dec 16, 2025
- Sonoma County, CA (24) · latest Nov 16, 2025
- Santa Cruz County, CA (22) · latest Jan 6, 2026
- Monterey County, CA (10) · latest Dec 10, 2024
- Humboldt County, CA (10) · latest Oct 16, 2025
- Santa Barbara County, CA (6) · latest Dec 30, 2024
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.