Thaxterogaster multiformis
Family Cortinariaceae · Updated October 2026
92US records
16states
Octbusiest month
92 US records since 1900 (3 in the last 10 years)
Last seen Nov 25, 2022 (about 4 years ago) near Big Lagoon, Humboldt County, CA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California, Tennessee and Colorado, and the busiest months are Oct, Nov 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, Nov, Aug.
Where it's recorded
Top counties
- Siskiyou County, CA (9) · latest Nov 14, 2011
- Pitkin County, CO (6) · latest Aug 19, 1978
- Tompkins County, NY (6) · latest Oct 28, 1904
- Sauk County, WI (5) · latest Aug 20, 1907
- San Mateo County, CA (5) · latest Mar 7, 1971
- Knox County, TN (5) · latest Nov 20, 1955
- Coos County, OR (5) · latest Nov 1, 1990
- Sevier County, TN (4) · latest Sep 14, 1958
- Shasta County, CA (3) · latest Oct 23, 2011
- Clallam County, WA (3) · latest Nov 10, 1993
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.