Cortinarius lucorum
Family Cortinariaceae · Updated October 2026
51US records
13states
Sepbusiest month
51 US records since 1903 (22 in the last 10 years)
Last seen Oct 4, 2026 (about 3 weeks ago) near Marysville, St. Clair County, MI, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from Washington, Oregon and New York, and the busiest months are Sep, 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.
☠ Dangerous genus. The genus Cortinarius includes webcaps containing orellanine. 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: Sep, Oct, Aug.
Where it's recorded
Top counties
- King County, WA (9) · latest Jun 28, 2005
- Whatcom County, WA (6) · latest Oct 5, 2021
- Oklahoma County, OK (4) · latest Apr 16, 2017
- Coos County, OR (4) · latest Oct 24, 1989
- Apache County, AZ (3) · latest Aug 26, 2025
- Wayne County, MI (2) · latest Sep 24, 1905
- Tompkins County, NY (2) · latest Aug 22, 1904
- Lane County, OR (2) · latest Oct 6, 1986
- Kenai Peninsula Borough, AK (2) · latest Aug 19, 2019
- St. Joseph County, IN (2) · latest Oct 21, 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.