Rosy Wood Mushroom
Agaricus semotus · Family Agaricaceae · Updated October 2026
59US records
11states
Novbusiest month
59 US records since 1943 (0 in the last 10 years)
Last seen Oct 10, 2014 (about 12 years ago) near Lakewood, Pierce County, WA, a preserved specimen in Field Museum of Natural History (Botany) Fungi Collection. Most US records come from California, Washington and Colorado, and the busiest months are Nov, Oct and Aug. (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, Aug.
Where it's recorded
Top counties
- Grand County, CO (8) · latest Aug 21, 1983
- Humboldt County, CA (6) · latest Oct 31, 1981
- King County, WA (4) · latest Oct 18, 2000
- San Juan County, WA (3) · latest Nov 10, 1979
- Mendocino County, CA (2) · latest Nov 26, 1982
- San Mateo County, CA (2) · latest Jan 9, 1993
- Yuba County, CA (2) · latest Dec 12, 1993
- Nevada County, CA (2) · latest Apr 24, 1993
- Lake County, MT (2) · latest Jul 14, 1983
- Pierce County, WA (2) · latest Oct 10, 2014
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.