Birch Knight
Tricholoma fulvum · Family Tricholomataceae · Updated October 2026
81US records
23states
Sepbusiest month
81 US records since 1900 (35 in the last 10 years)
Last seen Aug 28, 2026 (about 8 weeks ago) near Chatham, Alger County, MI, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from New York, Washington and Colorado, and the busiest months are Sep, Oct 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: Sep, Oct, Aug.
Where it's recorded
Top counties
- Clallam County, WA (5) · latest Oct 17, 2025
- Boulder County, CO (4) · latest Aug 12, 2023
- Humboldt County, CA (3) · latest Nov 3, 2024
- Prince George's County, MD (3) · latest Nov 10, 1966
- Steuben County, IN (3) · latest Oct 18, 2021
- Broome County, NY (3) · latest Oct 21, 2023
- Middlesex County, MA (2) · latest 1903-08
- Bronx County, NY (2) · latest Oct 1, 1989
- Knox County, TN (2) · latest Nov 15, 1961
- Anne Arundel County, MD (2) · latest Nov 20, 1970
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.