Inocybe xanthomelas
Family Inocybaceae · Updated October 2026
75US records
9states
Novbusiest month
75 US records since 1936 (5 in the last 10 years)
Last seen Dec 13, 2022 (about 4 years ago) near Guerneville, Sonoma County, CA, a preserved specimen in International Barcode of Life project (iBOL). Most US records come from Washington, California and Oregon, 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.
☠ Dangerous genus. The genus Inocybe includes fibercaps containing muscarine. Mushrooms in this group have caused serious or fatal poisonings.
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
- King County, WA (11) · latest Dec 7, 1999
- Pierce County, WA (10) · latest Oct 10, 2014
- Thurston County, WA (9) · latest Nov 13, 1971
- San Juan County, WA (8) · latest Nov 20, 1976
- Mendocino County, CA (5) · latest Dec 1, 1962
- Grays Harbor County, WA (3) · latest Nov 3, 2001
- Jefferson County, WA (3) · latest Sep 9, 2001
- Oswego County, NY (2) · latest Sep 16, 2022
- Coos County, OR (2) · latest Dec 3, 1984
- Mason County, WA (2) · latest Dec 12, 1999
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.