Questionable Stropharia
Stropharia ambigua · Family Strophariaceae · Updated October 2026
684US records
9states
Novbusiest month
684 US records since 1906 (576 in the last 10 years)
Last seen May 30, 2026 (about 5 months ago) in Olympic National Park, WA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California, Washington and Oregon, and the busiest months are Nov, Dec and Oct. (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: Nov, Dec, Oct.
Where it's recorded
Top counties
- San Mateo County, CA (52) · latest Feb 10, 2026
- King County, WA (45) · latest Jan 16, 2026
- Humboldt County, CA (45) · latest Dec 14, 2025
- Lane County, OR (38) · latest Jan 18, 2026
- Marin County, CA (38) · latest Feb 12, 2026
- Jefferson County, WA (36) · latest May 30, 2026
- Santa Clara County, CA (32) · latest Jan 10, 2026
- Alameda County, CA (31) · latest Jan 6, 2026
- Sonoma County, CA (31) · latest Jan 11, 2026
- Contra Costa County, CA (27) · latest Jan 18, 2026
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.