Alpine Brittlegill
Russula nana · Family Russulaceae · Updated October 2026
40US records
3states
Augbusiest month
40 US records since 1991 (5 in the last 10 years)
Last seen Aug 12, 2023 (about 3 years ago) near Ward, Boulder County, CO, a preserved specimen in Denver Botanic Gardens, Sam Mitchel Herbarium of Fungi. Most US records come from Colorado, Alaska and Utah, and the busiest months are Aug, Sep 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: Aug, Sep, Jul.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| Colorado | 19 | Aug 12, 2023 |
| Alaska | 17 | Aug 9, 2008 |
| Utah | 4 | Sep 7, 2019 |
Top counties
- Clear Creek County, CO (13) · latest Aug 20, 2013
- North Slope Borough, AK (7) · latest Aug 7, 2006
- Denali Borough, AK (6) · latest Aug 14, 1992
- Summit County, UT (4) · latest Sep 7, 2019
- Lake County, CO (2) · latest Aug 6, 2006
- Fairbanks North Star Borough, AK (2) · latest Aug 12, 2007
- Larimer County, CO (1) · latest Aug 24, 2012
- Boulder County, CO (1) · latest Aug 12, 2023
- Summit County, CO (1) · latest Sep 14, 1998
- Pitkin County, CO (1) · latest Aug 6, 2006
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.