Dusky Bolete
Porphyrellus porphyrosporus · Family Boletaceae · Updated October 2026
110US records
23states
Augbusiest month
110 US records since 1897 (57 in the last 10 years)
Last seen Sep 19, 2026 (about 5 weeks ago) near Lenox, Berkshire County, MA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California, Oregon and New York, and the busiest months are Aug, 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
Records by month, all years. Busiest: Aug, Sep, Oct.
Where it's recorded
Top counties
- Humboldt County, CA (32) · latest Aug 1, 2026
- Lane County, OR (6) · latest Oct 17, 2025
- Macon County, NC (5) · latest Jul 11, 1986
- Lincoln County, OR (5) · latest Oct 30, 2022
- Apache County, AZ (3) · latest Aug 18, 2024
- Essex County, NY (3) · latest Aug 4, 2022
- Sevier County, TN (2) · latest Aug 7, 1968
- Yancey County, NC (2) · latest Sep 24, 2021
- Del Norte County, CA (2) · latest Nov 10, 1937
- Sonoma County, CA (2) · latest Jul 11, 2026
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.