Lyophyllum semitale
Family Lyophyllaceae · Updated October 2026
68US records
11states
Octbusiest month
68 US records since 1900 (4 in the last 10 years)
Last seen Oct 13, 2023 (about 3 years ago) in Fresno County, CA, a preserved specimen in International Barcode of Life project (iBOL). Most US records come from New York, Washington and California, and the busiest months are Oct, Nov and Aug. (Data as of October 26, 2026; records can lag by weeks.)
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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: Oct, Nov, Aug.
Where it's recorded
Top counties
- Tompkins County, NY (15) · latest Aug 14, 1914
- Clallam County, WA (13) · latest Oct 5, 2007
- Marin County, CA (7) · latest Jan 17, 1997
- Orange County, NC (4) · latest Dec 13, 1919
- Suffolk County, NY (3) · latest Oct 29, 2022
- Humboldt County, CA (2) · latest Nov 10, 1979
- Park County, CO (2) · latest Aug 11, 1974
- Gilpin County, CO (2) · latest Aug 1, 1976
- Coos County, OR (2) · latest Nov 25, 1988
- Pierce County, WA (2) · latest Oct 28, 1973
More on this species from GBIF.
Bring along
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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.