Wood Oysterling
Deconica horizontalis · Family Strophariaceae · Updated October 2026
38US records
4states
Novbusiest month
38 US records since 1902 (15 in the last 10 years)
Last seen Oct 5, 2025 (about 13 months ago) near Cutten, Humboldt County, CA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California, Washington and Oregon, and the busiest months are Nov, Oct and May. (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: Nov, Oct, May.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| California | 15 | Oct 5, 2025 |
| Washington | 15 | Nov 30, 2000 |
| Oregon | 7 | Nov 8, 2023 |
| New York | 1 | 1902-10 |
Top counties
- Humboldt County, CA (11) · latest Oct 5, 2025
- Grays Harbor County, WA (5) · latest Nov 4, 1992
- Lane County, OR (4) · latest Nov 8, 2023
- Mendocino County, CA (3) · latest Nov 18, 1995
- Mason County, WA (3) · latest Dec 29, 1991
- King County, WA (3) · latest Nov 30, 2000
- Jefferson County, WA (2) · latest Oct 20, 1993
- Tillamook County, OR (1) · latest Nov 13, 1976
- Marion County, OR (1) · latest Oct 12, 2018
- Santa Cruz County, CA (1) · latest Mar 16, 2012
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.