Inky Agaricus
Agaricus moelleri · Family Agaricaceae · Updated October 2026
95US records
9states
Novbusiest month
95 US records since 1936 (5 in the last 10 years)
Last seen Sep 29, 2019 (about 7 years ago) near Sudden Valley, Whatcom County, WA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California, Washington and Hawaii, and the busiest months are Nov, Oct and Dec. (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: Nov, Oct, Dec.
Where it's recorded
Top counties
- Mendocino County, CA (14) · latest Nov 23, 1992
- Marin County, CA (10) · latest Feb 11, 2017
- King County, WA (8) · latest Oct 13, 2013
- Humboldt County, CA (7) · latest Nov 27, 1986
- Sonoma County, CA (6) · latest Dec 11, 2015
- Santa Cruz County, CA (6) · latest Dec 6, 2012
- San Juan County, WA (5) · latest Nov 7, 1977
- San Mateo County, CA (4) · latest Dec 22, 2016
- Hawaii County, HI (3) · latest Jan 4, 1997
- Del Norte County, CA (3) · latest Oct 8, 1966
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.