Entoloma decolorans
Family Entolomataceae · Updated October 2026
49US records
4states
Decbusiest month
49 US records since 1941 (5 in the last 10 years)
Last seen Nov 28, 2025 (about 11 months ago) near Monte Rio, Sonoma County, CA, a preserved specimen in INSDC Sequences. Most US records come from California, Washington and Tennessee, and the busiest months are Dec, Oct and Nov. (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 Entoloma includes species that cause severe stomach poisoning. 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, Oct, Nov.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| California | 36 | Nov 28, 2025 |
| Washington | 10 | Oct 22, 1972 |
| Tennessee | 2 | Jul 20, 1966 |
| Virginia | 1 | Aug 17, 1941 |
Top counties
- Mendocino County, CA (16) · latest Oct 26, 1975
- Marin County, CA (8) · latest Dec 24, 1982
- San Juan County, WA (5) · latest Nov 18, 1966
- Humboldt County, CA (3) · latest Feb 27, 2024
- San Mateo County, CA (2) · latest Jan 6, 1967
- El Dorado County, CA (2) · latest Sep 10, 1983
- Sonoma County, CA (2) · latest Nov 28, 2025
- Kittitas County, WA (2) · latest Oct 7, 1965
- Blount County, TN (2) · latest Jul 20, 1966
- Pierce County, WA (2) · latest Oct 22, 1972
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.