Collybiopsis subpruinosa
Family Omphalotaceae · Updated October 2026
52US records
8states
Janbusiest month
52 US records since 1971 (27 in the last 10 years)
Last seen May 22, 2026 (about 5 months ago) near Volcano, Hawaii County, HI, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California, Hawaii and Washington, and the busiest months are Jan, Sep 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.
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, Sep, Nov.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| California | 23 | Sep 24, 2025 |
| Hawaii | 17 | May 22, 2026 |
| Washington | 4 | Sep 20, 2019 |
| Kansas | 3 | – |
| Tennessee | 2 | Oct 6, 2021 |
| Colorado | 1 | Aug 19, 2021 |
| Mississippi | 1 | Dec 28, 1971 |
| Kentucky | 1 | Jul 31, 2022 |
Top counties
- Kauai County, HI (10) · latest Jan 13, 2002
- Humboldt County, CA (9) · latest Sep 24, 2025
- San Francisco County, CA (7) · latest Aug 15, 2024
- Hawaii County, HI (6) · latest May 22, 2026
- King County, WA (4) · latest Sep 20, 2019
- Wabaunsee County, KS (3)
- Knox County, TN (2) · latest Oct 6, 2021
- Los Angeles County, CA (2) · latest Feb 22, 2024
- Monterey County, CA (2) · latest Feb 11, 1998
- Maui County, HI (1) · latest Nov 22, 1996
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.