Mushroom Sightings
Mushroom Sightings
What's been spotted in the woods near you
Home › Species › Fomes arctostaphyli

Fomes arctostaphyli

Family Polyporaceae · Updated October 2026
51US records
2states
Marbusiest month
51 US records since 1916 (36 in the last 10 years)

Last seen Sep 5, 2026 (about 7 weeks ago) in Coronado National Forest, AZ, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California and Arizona, and the busiest months are Mar, Sep and Oct. (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.
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

Jan3Feb3Mar12Apr5May3Jun0Jul1Aug0Sep5Oct5Nov4Dec4

Records by month, all years. Busiest: Mar, Sep, Oct.

Where it's recorded

StateRecordsLatest sighting
California40Jan 11, 2026
Arizona11Sep 5, 2026

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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