Elfvingia reniformis
Family Polyporaceae · Updated October 2026
34US records
13states
Sepbusiest month
34 US records since 1883 (0 in the last 10 years)
Last seen Aug 16, 1932 (about 94 years ago) near Krotz Springs, St. Landry Parish, LA, a preserved specimen in Cornell University Plant Pathology Herbarium. Most US records come from Ohio, Kentucky and North Carolina, and the busiest months are Sep, Aug 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: Sep, Aug, Oct.
Where it's recorded
Top counties
- Hamilton County, OH (7) · latest Apr 15, 1908
- Grant County, KY (6) · latest Jul 1, 1918
- Haywood County, NC (3)
- Marion County, WV (2)
- St. Louis County, MO (2) · latest Jun 18, 1908
- Buncombe County, NC (1) · latest Sep 14, 1927
- Summit County, OH (1)
- District of Columbia, DC (1)
- Edmonson County, KY (1) · latest 1912
- Jackson County, MS (1)
More on this species from GBIF.
Bring along
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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.