Inocybe leiocephala
Family Inocybaceae · Updated October 2026
42US records
6states
Decbusiest month
42 US records since 1948 (8 in the last 10 years)
Last seen Sep 6, 2024 (about 2 years ago) near Meyers, El Dorado County, CA, a preserved specimen in International Barcode of Life project (iBOL). Most US records come from Washington, California and Alaska, and the busiest months are Dec, Sep 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.
☠ 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: Dec, Sep, Aug.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| Washington | 28 | May 14, 1988 |
| California | 7 | Sep 6, 2024 |
| Alaska | 3 | Aug 21, 2014 |
| Idaho | 2 | Aug 8, 1954 |
| Arizona | 1 | Jul 23, 2023 |
| Michigan | 1 | Aug 2, 1953 |
Top counties
- Pierce County, WA (16) · latest May 14, 1988
- King County, WA (6) · latest Oct 25, 1953
- Inyo County, CA (5) · latest Aug 18, 2024
- Anchorage Municipality, AK (3) · latest Aug 21, 2014
- Valley County, ID (2) · latest Aug 8, 1954
- Lewis County, WA (2) · latest Sep 24, 1948
- San Juan County, WA (2) · latest Oct 29, 1977
- Apache County, AZ (1) · latest Jul 23, 2023
- Mono County, CA (1) · latest Aug 28, 2023
- El Dorado County, CA (1) · latest Sep 6, 2024
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.