Langermannia pachyderma
Family Lycoperdaceae · Updated October 2026
47US records
8states
Aprbusiest month
47 US records since 1883 (16 in the last 10 years)
Last seen Apr 19, 2026 (about 6 months ago) in Pleasanton Ridge Regional Park, CA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California, Arizona and Kansas, and the busiest months are Apr, May and Jun. (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: Apr, May, Jun.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| California | 39 | Apr 19, 2026 |
| Arizona | 2 | Nov 21, 1933 |
| Kansas | 1 | May 2, 1920 |
| Colorado | 1 | – |
| Utah | 1 | – |
| Idaho | 1 | Jun 11, 1917 |
| South Dakota | 1 | – |
| Washington | 1 | 1883 |
Top counties
- Alameda County, CA (8) · latest Apr 19, 2026
- Los Angeles County, CA (7) · latest Nov 25, 2025
- San Francisco County, CA (5) · latest Sep 6, 2018
- Santa Cruz County, CA (4) · latest Oct 28, 2025
- Madera County, CA (2) · latest Apr 21, 1941
- Yavapai County, AZ (2) · latest Nov 21, 1933
- Marin County, CA (2) · latest 1930-03
- Contra Costa County, CA (2) · latest Aug 11, 2021
- Riverside County, CA (1) · latest May 27, 2018
- Reno County, KS (1) · latest May 2, 1920
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.