Boreostereum radiatum
Family Gloeophyllaceae · Updated October 2026
65US records
14states
Sepbusiest month
65 US records since 1876 (0 in the last 10 years)
Last seen Jul 31, 1970 (about 56 years ago) in Clearwater County, MN, a preserved specimen in The New York Botanical Garden Herbarium (NY). Most US records come from New York, Pennsylvania and Maine, and the busiest months are Sep, Oct 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: Sep, Oct, Jul.
Where it's recorded
Top counties
- Albany County, NY (14) · latest Aug 23, 1901
- Tompkins County, NY (9) · latest May 3, 1927
- Chester County, PA (5) · latest 1879-06
- Onondaga County, NY (4) · latest Aug 27, 1931
- Bonner County, ID (4) · latest 1915-09
- Penobscot County, ME (3) · latest Sep 18, 1926
- Centre County, PA (3) · latest Nov 22, 1915
- Sevier County, TN (3) · latest Mar 7, 1944
- St. Louis County, MN (2) · latest Jul 26, 1886
- Orleans County, NY (2) · latest Jun 10, 1890
More on this species from GBIF.
Bring along
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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.