Crepidotus dorsalis
Family Crepidotaceae · Updated October 2026
41US records
14states
Augbusiest month
41 US records since 1893 (0 in the last 10 years)
Last seen Dec 29, 1969 (about 57 years ago) near Fairfax, Marin County, CA, a preserved specimen in San Francisco State University, Harry D. Thiers Herbarium. Most US records come from New York, Pennsylvania and Illinois, and the busiest months are Aug, Jun and Jul. (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, Jun, Jul.
Where it's recorded
Top counties
- Hamilton County, OH (4) · latest Oct 24, 1936
- Tompkins County, NY (4) · latest Jul 16, 1903
- Westmoreland County, PA (3) · latest Aug 7, 1925
- Cook County, IL (3) · latest 1930-10
- Chippewa County, MI (2) · latest Aug 14, 1967
- Montgomery County, MD (2) · latest Oct 10, 1936
- Hamilton County, NY (2) · latest Aug 30, 1933
- Washington County, NY (2) · latest Jun 17, 1917
- Marin County, CA (1) · latest Dec 29, 1969
- Genesee County, NY (1) · latest Jun 29, 1948
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.