Rhodocollybia asema
Family Omphalotaceae · Updated October 2026
64US records
14states
Octbusiest month
64 US records since 1964 (54 in the last 10 years)
Last seen Nov 2, 2025 (about 12 months ago) near Eagle River, Keweenaw County, MI, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from Washington, Minnesota and Oregon, and the busiest months are Oct, 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: Oct, Sep, Nov.
Where it's recorded
Top counties
- Clallam County, WA (18) · latest Oct 17, 2025
- Anoka County, MN (6) · latest Sep 29, 2023
- Lincoln County, OR (3) · latest Nov 23, 2022
- Marin County, CA (2) · latest Dec 22, 2024
- Humboldt County, CA (2) · latest Nov 9, 2023
- Kittitas County, WA (2) · latest Jun 4, 1988
- Multnomah County, OR (2) · latest Sep 18, 1992
- Brown County, IN (2) · latest May 16, 2024
- Cattaraugus County, NY (2) · latest Aug 18, 2023
- Portage County, OH (2) · latest Oct 22, 2023
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.