Midnight Entoloma
Entoloma medianox · Family Entolomataceae · Updated October 2026
132US records
3states
Janbusiest month
132 US records since 1999 (113 in the last 10 years)
Last seen May 8, 2026 (about 6 months ago) in Wilder Ranch State Park, CA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California, Oregon and Washington, and the busiest months are Jan, Dec 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: Jan, Dec, Nov.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| California | 130 | May 8, 2026 |
| Oregon | 1 | Oct 13, 2018 |
| Washington | 1 | Nov 4, 2023 |
Top counties
- Santa Cruz County, CA (40) · latest May 8, 2026
- Sonoma County, CA (26) · latest Dec 28, 2025
- Humboldt County, CA (20) · latest Dec 2, 2025
- San Mateo County, CA (11) · latest Dec 30, 2025
- Contra Costa County, CA (10) · latest Jan 17, 2026
- Mendocino County, CA (8) · latest Nov 14, 2025
- Marin County, CA (5) · latest Nov 30, 2025
- Alameda County, CA (4) · latest Jan 16, 2024
- Santa Clara County, CA (4) · latest Dec 9, 2025
- Benton County, OR (1) · latest Oct 13, 2018
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.