Gymnopus hariolorum
Family Omphalotaceae · Updated October 2026
31US records
12states
Julbusiest month
31 US records since 1903 (0 in the last 10 years)
Last seen Jul 30, 2009 (about 17 years ago) near Pittman Center, Sevier County, TN, a preserved specimen in University of Tennessee Fungal Herbarium. Most US records come from Wyoming, North Carolina and California, and the busiest months are Jul, Aug and Oct. (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: Jul, Aug, Oct.
Top counties
- Albany County, WY (7) · latest Aug 7, 1954
- San Mateo County, CA (3) · latest Dec 12, 1975
- Macon County, NC (2) · latest Jul 6, 1979
- Haywood County, NC (2) · latest Jul 21, 2001
- Mendocino County, CA (1) · latest Nov 28, 1975
- Cheboygan County, MI (1) · latest Aug 11, 1968
- Swain County, NC (1) · latest Aug 20, 1992
- Washtenaw County, MI (1) · latest Sep 27, 1961
- Genesee County, NY (1) · latest Aug 11, 1962
- Erie County, NY (1) · latest Aug 15, 1962
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.