Marasmius albogriseus
Family Marasmiaceae · Updated October 2026
39US records
4states
Janbusiest month
39 US records since 1895 (25 in the last 10 years)
Last seen Jan 4, 2026 (about 10 months ago) near Glendale, Los Angeles County, CA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California, Arizona and Tennessee, and the busiest months are Jan, Mar and Dec. (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: Jan, Mar, Dec.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| California | 35 | Jan 4, 2026 |
| Arizona | 2 | Oct 18, 2025 |
| Tennessee | 1 | Sep 7, 1986 |
| Washington | 1 | 1926-04 |
Top counties
- Los Angeles County, CA (25) · latest Jan 4, 2026
- Placer County, CA (2) · latest Dec 16, 2024
- Yavapai County, AZ (2) · latest Oct 18, 2025
- San Luis Obispo County, CA (2) · latest Mar 5, 2023
- Sierra County, CA (1) · latest Jun 4, 1997
- San Diego County, CA (1) · latest Mar 10, 1970
- Fresno County, CA (1) · latest Mar 3, 2024
- Riverside County, CA (1) · latest Feb 14, 2023
- Knox County, TN (1) · latest Sep 7, 1986
- Santa Barbara County, CA (1) · latest Dec 30, 2012
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.