Agrocybe vermiflua
Family Strophariaceae · Updated October 2026
42US records
11states
Junbusiest month
42 US records since 1889 (0 in the last 10 years)
Last seen Apr 23, 1991 (about 36 years ago) near Chicago, Cook County, IL, a preserved specimen in Field Museum of Natural History (Botany) Fungi Collection. Most US records come from Pennsylvania, Illinois and New York, and the busiest months are Jun, May 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, May, Jul.
Where it's recorded
Top counties
- Centre County, PA (10) · latest Jun 3, 1975
- Cook County, IL (7) · latest Apr 23, 1991
- Anne Arundel County, MD (3) · latest Jun 2, 1966
- Rooks County, KS (3) · latest 1903-05
- Dane County, WI (2) · latest 1910-09
- Ontario County, NY (2) · latest Jul 15, 1932
- Union County, PA (1) · latest Jul 8, 1939
- Westchester County, NY (1) · latest May 20, 1984
- Madera County, CA (1) · latest Mar 19, 1989
- DuPage County, IL (1) · latest Jun 10, 1979
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.