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Cortinarius ohlone

Cortinarius ohlone (Cortinarius ohlone), photo
Photo: Alan Rockefeller, CC BY 4.0 · iNaturalist
Family Cortinariaceae · Updated October 2026
41US records
1states
Janbusiest month
41 US records since 2015 (40 in the last 10 years)

Last seen Apr 5, 2025 (about 19 months ago) near Descanso, San Diego County, CA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California, and the busiest months are Jan, Feb 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 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

Jan23Feb10Mar2Apr1May0Jun0Jul0Aug0Sep0Oct0Nov0Dec5

Records by month, all years. Busiest: Jan, Feb, Dec.

Where it's recorded

StateRecordsLatest sighting
California41Apr 5, 2025

Top counties

More on this species from GBIF.

Bring along

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Regional mushroom field guideSee on Amazon
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Folding mushroom knife with brushSee on Amazon
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Wicker foraging basketSee on Amazon
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10x hand lens / loupeSee on Amazon
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Spore print paperSee on Amazon

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