Melanoleuca graminicola
Family Tricholomataceae · Updated October 2026
83US records
11states
Junbusiest month
83 US records since 1945 (4 in the last 10 years)
Last seen Jul 20, 2023 (about 3 years ago) near Aurora, Adams County, CO, a preserved specimen in Denver Botanic Gardens, Sam Mitchel Herbarium of Fungi. Most US records come from Washington, California and Utah, and the busiest months are Jun, Aug and Jul. (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: Jun, Aug, Jul.
Where it's recorded
Top counties
- Grant County, WA (22) · latest Nov 20, 1981
- Sierra County, CA (10) · latest Jun 2, 1996
- Weber County, UT (8) · latest Jul 29, 1982
- Valley County, ID (5) · latest Jun 14, 1967
- El Dorado County, CA (5) · latest Jul 9, 1982
- Yakima County, WA (3) · latest May 23, 2000
- Cache County, UT (3) · latest May 17, 2003
- King County, WA (2) · latest Oct 14, 1998
- Kittitas County, WA (2) · latest May 27, 2007
- Rich County, UT (2) · latest May 23, 2006
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.