Powdered Duster
Amylostereum chailletii · Family Echinodontiaceae · Updated October 2026
88US records
19states
Julbusiest month
88 US records since 1892 (2 in the last 10 years)
Last seen Jul 27, 2023 (about 3 years ago) near Rio en Medio, Santa Fe County, NM, a preserved specimen in University of Tennessee Fungal Herbarium. Most US records come from Tennessee, Idaho and North Carolina, and the busiest months are Jul, Sep and Aug. (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, Sep, Aug.
Where it's recorded
Top counties
- Bonner County, ID (11) · latest May 12, 1920
- Sevier County, TN (10) · latest Aug 18, 1984
- Swain County, NC (10) · latest Sep 10, 1983
- Tompkins County, NY (4) · latest 1919-05
- Snohomish County, WA (4) · latest Nov 17, 1969
- Addison County, VT (3) · latest Jun 29, 1896
- Clallam County, WA (3) · latest Oct 8, 2014
- Lane County, OR (3) · latest Jul 3, 1958
- Pima County, AZ (2) · latest Sep 9, 1978
- Blount County, TN (2) · latest Jun 15, 1963
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.