Woolly Webcap
Cortinarius laniger · Family Cortinariaceae · Updated October 2026
106US records
15states
Octbusiest month
106 US records since 1906 (5 in the last 10 years)
Last seen Nov 29, 2019 (about 7 years ago) in Jackson Demonstration State Forest, CA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from Washington, Minnesota and Colorado, and the busiest months are Oct, Sep 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: Oct, Sep, Aug.
Where it's recorded
Top counties
- Clallam County, WA (28) · latest Oct 19, 2001
- Itasca County, MN (7) · latest Sep 25, 1994
- Pitkin County, CO (6) · latest Aug 6, 1979
- Mendocino County, CA (6) · latest Nov 29, 2019
- Teton County, WY (5) · latest Sep 1, 1995
- Lake County, MN (4) · latest Sep 25, 1996
- Coos County, OR (4) · latest Sep 21, 1992
- Lewis County, WA (3) · latest Oct 10, 1986
- Marin County, CA (2) · latest Nov 25, 1984
- Cheboygan County, MI (2) · latest Aug 24, 1953
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.