Botryobasidium isabellinum
Family Botryobasidiaceae · Updated October 2026
109US records
22states
Julbusiest month
109 US records since 1880 (4 in the last 10 years)
Last seen Dec 12, 2020 (about 6 years ago) near Interlachen, Putnam County, FL, a preserved specimen in University of Tennessee Fungal Herbarium. Most US records come from Pennsylvania, New Jersey and Tennessee, and the busiest months are Jul, Aug and Sep. (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: Jul, Aug, Sep.
Where it's recorded
Top counties
- Gloucester County, NJ (15) · latest Aug 27, 1996
- Sevier County, TN (7) · latest Sep 30, 2015
- Blount County, TN (6) · latest Sep 28, 2015
- Champaign County, IL (5) · latest May 24, 1973
- Macon County, NC (4) · latest Sep 28, 1988
- Cattaraugus County, NY (4) · latest Jul 16, 1964
- Josephine County, OR (3) · latest 1958-06
- Hubbard County, MN (2) · latest Sep 16, 1977
- Alachua County, FL (2) · latest Jan 3, 1954
- Chautauqua County, NY (2) · latest Jul 19, 1911
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.