Pavement Mushroom
Agaricus bitorquis · Family Agaricaceae · Updated October 2026
206US records
26states
Maybusiest month
206 US records since 1896 (65 in the last 10 years)
Last seen Sep 14, 2026 (about 6 weeks ago) near New York, New York County, NY, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California, Maryland and New York, and the busiest months are May, Feb and Apr. (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: May, Feb, Apr.
Where it's recorded
Top counties
- Prince George's County, MD (41) · latest Jan 26, 1987
- San Francisco County, CA (12) · latest Nov 3, 2017
- Cook County, IL (9) · latest Aug 29, 2025
- Sonoma County, CA (9) · latest Jan 22, 2023
- Santa Barbara County, CA (7) · latest Jan 1, 2017
- Denver County, CO (7) · latest Jun 12, 2015
- Cache County, UT (6) · latest Sep 22, 2008
- Los Angeles County, CA (5) · latest Jan 19, 2023
- San Mateo County, CA (5) · latest Feb 10, 2026
- Alameda County, CA (5) · latest Feb 23, 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.