Agaricus albolutescens
Family Agaricaceae · Updated October 2026
43US records
8states
Augbusiest month
43 US records since 1964 (5 in the last 10 years)
Last seen Dec 23, 2021 (about 5 years ago) in Pulgas Ridge Open Space Preserve, 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 Washington, and the busiest months are Aug, Sep and Jul. (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: Aug, Sep, Jul.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| California | 17 | Dec 23, 2021 |
| Colorado | 15 | Aug 13, 2021 |
| Washington | 6 | Jul 25, 1997 |
| Pennsylvania | 1 | Sep 6, 1986 |
| Idaho | 1 | Sep 4, 2008 |
| Utah | 1 | Jun 26, 1999 |
| Michigan | 1 | Jul 10, 1967 |
| Oregon | 1 | Oct 1, 1992 |
Top counties
- Boulder County, CO (5) · latest Aug 27, 2007
- Santa Barbara County, CA (4) · latest Jan 12, 2019
- King County, WA (4) · latest Jun 6, 1988
- Summit County, CO (3) · latest Aug 23, 1992
- Tuolumne County, CA (2) · latest Apr 29, 1992
- Sierra County, CA (2) · latest Jun 17, 1993
- Humboldt County, CA (2) · latest Dec 29, 1967
- Clear Creek County, CO (2) · latest Sep 9, 2000
- Grand County, CO (2) · latest Aug 13, 2021
- Eagle County, CO (2) · latest Jul 27, 1973
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.