Mulch Fieldcap
Agrocybe putaminum · Family Strophariaceae · Updated October 2026
81US records
9states
Aprbusiest month
81 US records since 1994 (74 in the last 10 years)
Last seen Apr 25, 2026 (about 6 months ago) near Arden-Arcade, Sacramento County, CA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California, New York and Indiana, and the busiest months are Apr, May 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: Apr, May, Nov.
Where it's recorded
Top counties
- San Francisco County, CA (22) · latest Apr 9, 2024
- Alameda County, CA (11) · latest Jan 6, 2022
- Santa Clara County, CA (11) · latest Nov 18, 2025
- Marin County, CA (9) · latest Apr 1, 2025
- Nassau County, NY (3) · latest May 4, 2019
- Sonoma County, CA (3) · latest Apr 2, 2025
- Suffolk County, NY (2) · latest May 7, 2016
- Kings County, NY (2) · latest Apr 27, 2020
- Sacramento County, CA (2) · latest Apr 25, 2026
- San Mateo County, CA (2) · latest May 18, 2020
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.