Poria attenuata
Family Polyporaceae · Updated October 2026
51US records
14states
Octbusiest month
51 US records since 1844 (0 in the last 10 years)
Last seen May 25, 1937 (about 89 years ago) near Altona, Clinton County, NY, a preserved specimen in Cornell University Plant Pathology Herbarium. Most US records come from New York, Wisconsin and Vermont, and the busiest months are Oct, Aug 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: Oct, Aug, Dec.
Where it's recorded
Top counties
- Tompkins County, NY (8) · latest Dec 13, 1901
- Dane County, WI (6) · latest 1916
- Addison County, VT (6) · latest 1910-10
- Albany County, NY (3) · latest 1907-10
- Onondaga County, NY (3) · latest May 27, 1912
- Washington County, NY (2) · latest Oct 13, 1915
- Cook County, IL (2) · latest 1903-06
- Hamilton County, OH (2) · latest 1920
- Beaver County, PA (2) · latest Oct 24, 1922
- Carroll County, NH (2) · latest Jun 8, 1918
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.