Mealy Bigfoot Webcap
Cortinarius caerulescens · Family Cortinariaceae · Updated October 2026
30US records
16states
Sepbusiest month
30 US records since 1875 (1 in the last 10 years)
Last seen Sep 26, 2017 (about 9 years ago) near Knoxville, Knox County, TN, a preserved specimen in University of Tennessee Fungal Herbarium. Most US records come from New York, Maryland and California, 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
- Suffolk County, NY (3) · latest Sep 24, 1971
- Essex County, MA (2) · latest Sep 17, 1898
- Knox County, TN (2) · latest Sep 26, 2017
- Anne Arundel County, MD (2) · latest Sep 27, 1965
- Humboldt County, CA (2) · latest Jan 3, 1931
- Tompkins County, NY (2) · latest Sep 19, 1903
- Sauk County, WI (1) · latest Aug 15, 1906
- Santa Clara County, CA (1) · latest Dec 4, 1901
- Washtenaw County, MI (1) · latest Oct 4, 1907
- Chester County, PA (1) · latest Sep 27, 1950
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.