Inocybe subbrunnea
Family Inocybaceae · Updated October 2026
33US records
4states
Octbusiest month
33 US records since 1947 (0 in the last 10 years)
Last seen Oct 17, 1990 (about 36 years ago) near La Grande, Pierce County, WA, a preserved specimen in University of Washington Herbarium (WTU) - Macrofungi Collection. Most US records come from Washington, Michigan and Oregon, and the busiest months are Oct, Jun 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: Oct, Jun, Jul.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| Washington | 24 | Oct 17, 1990 |
| Michigan | 6 | Jul 13, 1953 |
| Oregon | 2 | Oct 8, 1982 |
| California | 1 | Jun 24, 1965 |
Top counties
- Pierce County, WA (19) · latest Oct 17, 1990
- Thurston County, WA (2) · latest Oct 25, 1971
- Chippewa County, MI (2) · latest Jul 10, 1953
- Emmet County, MI (2) · latest Jul 7, 1953
- Shasta County, CA (1) · latest Jun 24, 1965
- Hood River County, OR (1) · latest Oct 8, 1982
- Cheboygan County, MI (1) · latest Jul 13, 1953
- King County, WA (1) · latest Oct 12, 1975
- San Juan County, WA (1) · latest Apr 4, 1961
- Kittitas County, WA (1) · latest Jun 12, 1971
More on this species from GBIF.
Bring along
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10x hand lens / loupeSee on Amazon🍄
Spore print paperSee on AmazonAs an Amazon Associate we earn from qualifying purchases.