Glue Crust Fungus
Hydnoporia diffissa · Family Hymenochaetaceae · Updated October 2026
57US records
11states
Sepbusiest month
57 US records since 2015 (55 in the last 10 years)
Last seen Sep 25, 2026 (about 4 weeks ago) near Finland, Lake County, MN, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from Minnesota, Pennsylvania and North Carolina, and the busiest months are Sep, Jun 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.
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, Jun, Dec.
Top counties
- St. Louis County, MN (17) · latest Aug 9, 2025
- Lake County, MN (6) · latest Sep 25, 2026
- Orange County, IN (3) · latest Sep 7, 2024
- Blount County, AL (3) · latest Sep 22, 2025
- McKean County, PA (2) · latest Nov 6, 2024
- Capitol Planning Region, CT (2) · latest Sep 9, 2026
- Chester County, PA (2) · latest Jan 20, 2023
- Allegheny County, PA (2) · latest Apr 14, 2018
- McDowell County, NC (1) · latest Sep 25, 2021
- Worcester County, MA (1) · latest Oct 5, 2015
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.