Walnut Mycena
Mycena crocea · Family Mycenaceae · Updated October 2026
211US records
20states
Octbusiest month
211 US records since 1902 (197 in the last 10 years)
Last seen Oct 4, 2026 (about 3 weeks ago) near Bloomington, Monroe County, IN, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from Pennsylvania, Indiana and Ohio, and the busiest months are Oct, Sep 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.
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: Oct, Sep, Aug.
Where it's recorded
Top counties
- Brown County, IN (16) · latest Oct 1, 2024
- Allegheny County, PA (11) · latest Sep 12, 2026
- Orange County, IN (10) · latest Oct 9, 2024
- Montgomery County, MD (7) · latest Oct 15, 2023
- Monroe County, IN (6) · latest Oct 4, 2026
- Butler County, PA (6) · latest Sep 14, 2024
- Portage County, OH (6) · latest Oct 19, 2023
- Philadelphia County, PA (5) · latest Oct 7, 2023
- Delaware County, PA (5) · latest Oct 14, 2022
- Fairfax County, VA (5) · latest Oct 14, 2023
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.