Entoloma fuligineomarginatum
Family Entolomataceae · Updated October 2026
38US records
4states
Octbusiest month
38 US records since 1903 (0 in the last 10 years)
Last seen Jun 9, 1993 (about 33 years ago) in Olympic National Park, WA, a preserved specimen in University of Washington Herbarium (WTU) - Macrofungi Collection. Most US records come from Washington, California and New York, and the busiest months are Oct, Nov and Jan. (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: Oct, Nov, Jan.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| Washington | 26 | Jun 9, 1993 |
| California | 8 | Nov 25, 1984 |
| New York | 3 | Aug 9, 1903 |
| Tennessee | 1 | Aug 18, 1940 |
Top counties
- Marin County, CA (6) · latest Nov 25, 1984
- Snohomish County, WA (6) · latest Oct 5, 1967
- San Juan County, WA (5) · latest Nov 18, 1966
- Chelan County, WA (3) · latest Oct 17, 1966
- Kittitas County, WA (3) · latest Oct 7, 1965
- Walla Walla County, WA (2) · latest Nov 14, 1965
- Ulster County, NY (2) · latest Aug 9, 1903
- King County, WA (2) · latest Oct 17, 1967
- Calaveras County, CA (1) · latest May 26, 1966
- Island County, WA (1) · latest Nov 22, 1966
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.