Collared Fibrecap
Inocybe cincinnata · Family Inocybaceae · Updated October 2026
133US records
18states
Novbusiest month
133 US records since 1902 (22 in the last 10 years)
Last seen Aug 11, 2023 (about 3 years ago) near Mexico, Oswego County, NY, a preserved specimen in Cornell University Plant Pathology Herbarium. Most US records come from Washington, New York and Tennessee, and the busiest months are Nov, Oct 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.
☠ Dangerous genus. The genus Inocybe includes fibercaps containing muscarine. Mushrooms in this group have caused serious or fatal poisonings.
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, Oct, Jul.
Where it's recorded
Top counties
- King County, WA (26) · latest Nov 9, 2001
- San Juan County, WA (18) · latest Nov 21, 1976
- Pierce County, WA (10) · latest Nov 15, 1990
- Tompkins County, NY (7) · latest Jul 30, 1912
- Kitsap County, WA (5) · latest Nov 11, 1999
- Sonoma County, CA (3) · latest Jan 20, 2022
- Mason County, WA (3) · latest Dec 5, 2021
- Loudon County, TN (3) · latest Oct 26, 2021
- Cheboygan County, MI (3) · latest Jul 30, 1962
- Thurston County, WA (3) · latest Oct 25, 1971
More on this species from GBIF.
Bring along
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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.