Crustomyces subabruptus
Family Cystostereaceae · Updated October 2026
33US records
4states
Febbusiest month
33 US records since 1941 (5 in the last 10 years)
Last seen Oct 18, 2024 (about 2 years ago) near Eugene, Lane County, OR, a preserved specimen in INSDC Sequences. Most US records come from California, Washington and Oregon, and the busiest months are Feb, Jan and Oct. (Data as of October 26, 2026; records can lag by weeks.)
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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: Feb, Jan, Oct.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| California | 28 | Sep 22, 2024 |
| Washington | 3 | Oct 11, 2014 |
| Oregon | 1 | Oct 18, 2024 |
| North Carolina | 1 | Aug 25, 1950 |
Top counties
- Del Norte County, CA (22) · latest 1948-01/19
- Humboldt County, CA (3) · latest Mar 17, 2024
- Pierce County, WA (3) · latest Oct 11, 2014
- Lane County, OR (1) · latest Oct 18, 2024
- Marin County, CA (1) · latest Sep 22, 2024
- Shasta County, CA (1) · latest 1944-02
- Sonoma County, CA (1) · latest Apr 22, 2023
- Buncombe County, NC (1) · latest Aug 25, 1950
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.