Agaricus amicosus
Family Agaricaceae · Updated October 2026
37US records
1states
Augbusiest month
37 US records since 1979 (6 in the last 10 years)
Last seen Aug 13, 2022 (about 4 years ago) in Pike National Forest, CO, a preserved specimen in Denver Botanic Gardens, Sam Mitchel Herbarium of Fungi. Most US records come from Colorado, and the busiest months are Aug, Sep 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: Aug, Sep, Jul.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| Colorado | 37 | Aug 13, 2022 |
Top counties
- Clear Creek County, CO (14) · latest Aug 13, 2022
- Boulder County, CO (7) · latest Sep 9, 1995
- Larimer County, CO (7) · latest Aug 24, 2012
- Summit County, CO (4) · latest Sep 24, 1998
- Grand County, CO (3) · latest Aug 30, 2021
- San Miguel County, CO (1) · latest Aug 19, 2021
- Jefferson County, CO (1) · latest Jul 14, 2021
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.