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Mushrooms in San Bernardino County, California
Updated October 2026 · from open GBIF records
2,288mushroom records
274species recorded
Junbusiest month
2,288 records since 1885 (701 in the last 10 years)
Fruiting now
Based on past sightings (mostly since 2011; all years where recent records are few), not a forecast. Weather and place matter a lot, and a listing here says nothing about whether a mushroom is safe.
Too few past records in January here to list species.
Usually recorded in February here:
Desert Inkcap Montagnea arenaria2 February records since 2011
Usually recorded in March here:
- Desert Inkcap Montagnea arenaria7 March records across all years
Tulostoma fimbriatum3 March records across all years
Desert Shaggymane Podaxis pistillaris3 March records across all years- Agaricus devoniensis2 March records across all years
Giraffe Spots Peniophora albobadia2 March records across all years
Usually recorded in April here:
- Desert Inkcap Montagnea arenaria6 April records since 2011
Schrenk's Red-Belt Conk Fomitopsis schrenkii4 April records since 2011- Desert Shaggymane Podaxis pistillaris3 April records since 2011
Saffron Webcap Cortinarius croceus2 April records since 2011
Pseudoomphalina angelesiana2 April records since 2011
Slimy-Girdled Cort Cortinarius glutinosoarmillatus2 April records since 2011
Snowmelt Clitocybe Clitocybe glacialis2 April records since 2011
Bleeding Fairy Helmet Mycena haematopus2 April records since 2011
Melanoleuca angelesiana2 April records since 2011- Cortinarius desertorum2 April records since 2011
Cannon Fungus Sphaerobolus stellatus2 April records since 2011- Cytidia stereoides2 April records since 2011
Usually recorded in May here:
- Desert Inkcap Montagnea arenaria10 May records across all years
- Tulostoma mohavei6 May records across all years
Cryptic Globe Fungus Cryptoporus volvatus4 May records across all years
Ramaria rasilispora2 May records across all years- Tyromyces leucospongius2 May records across all years
Usually recorded in June here:
- Desert Inkcap Montagnea arenaria6 June records since 2011
- Cryptic Globe Fungus Cryptoporus volvatus6 June records since 2011
Sandy Stilt Puffball Battarrea phalloides5 June records since 2011
Leopard Earthball Scleroderma areolatum2 June records since 2011
False Parasol Chlorophyllum molybdites2 June records since 2011
Usually recorded in July here:
Giant Lentinus Neolentinus ponderosus5 July records since 2011- Cyathus annulatus2 July records since 2011
- Conocybe pseudocrispa2 July records since 2011
- Mallocybe malenconii2 July records since 2011
- Cryptic Globe Fungus Cryptoporus volvatus2 July records since 2011
Usually recorded in August here:
- False Parasol Chlorophyllum molybdites4 August records since 2011
Lantern Stinkhorn Lysurus mokusin2 August records since 2011- Giant Lentinus Neolentinus ponderosus2 August records since 2011
Usually recorded in September here:
- Entoloma undatum8 September records since 2011
Suillus pseudobrevipes4 September records since 2011
Floccularia albolanaripes4 September records since 2011- False Parasol Chlorophyllum molybdites4 September records since 2011
Fir-Cone Mushroom Strobilurus trullisatus3 September records since 2011
Clustered Domecap Lyophyllum decastes3 September records since 2011- Pholiota ferrugineolutescens3 September records since 2011
Western American False Panther Amanita pantherinoides3 September records since 2011- Cortinarius subbalaustinus3 September records since 2011
- Inocybe subtomentosa3 September records since 2011
- Russula turci3 September records since 2011
- Hebeloma excedens3 September records since 2011
Usually recorded in October here:
Turkeytail Trametes versicolor4 October records across all years- Desert Shaggymane Podaxis pistillaris3 October records across all years
- Desert Inkcap Montagnea arenaria3 October records across all years
- False Parasol Chlorophyllum molybdites3 October records across all years
Grey Puffball Bovista plumbea2 October records across all years
Usually recorded in November here:
- Disciseda johnstonii5 November records across all years
Hairy Bracket Trametes hirsuta4 November records across all years
Golden Bracket Fuscoporia gilva3 November records across all years
Smoky Bracket Bjerkandera adusta2 November records across all years
Dune Stinkhorn Phallus hadriani2 November records across all years
Dwarf Bovist Lycoperdon dermoxanthum2 November records across all years- Desert Shaggymane Podaxis pistillaris2 November records across all years
Honey Fungus Armillaria mellea2 November records across all years
Usually recorded in December here:
Common Porecrust, Split Gill Fungus Schizophyllum commune3 December records across all years- Hairy Bracket Trametes hirsuta3 December records across all years
- Postia johnstonii3 December records across all years
Artist's Bracket Ganoderma applanatum2 December records across all years- Turkeytail Trametes versicolor2 December records across all years
- Desert Shaggymane Podaxis pistillaris2 December records across all years
- Desert Inkcap Montagnea arenaria2 December records across all years
⚠ 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.
Most-recorded species
| # | Species | Records |
|---|---|---|
| 1 | 42 | |
| 2 | 19 | |
| 3 | 18 | |
| 4 | 15 | |
| 5 | 10 | |
| 6 | 9 | |
| 7 | 9 | |
| 8 | Entoloma undatum | 8 |
| 9 | 8 | |
| 10 | 8 | |
| 11 | Tulostoma mohavei | 7 |
| 12 | 7 | |
| 13 | 7 | |
| 14 | 7 | |
| 15 | 7 |
Being on this list doesn't mean a mushroom is common, easy to identify or safe. It only means it has been recorded here often.
Best months to look
Records by month, all years. Busiest: Jun, Sep, Apr.
Sightings map
● Each dot is a place with at least one record (rounded to about 1 km). Locations can be approximate, and many are on private land. Numbered blue circles are recent sightings, shown only to a general area of about 10 km.
Recent sightings
The 10 most recent dated records in this county, newest first. Data as of October 26, 2026. Records can take weeks or more to reach GBIF, so the newest finds may not show yet. Places are given only as a public park or forest (from the USGS Protected Areas Database) or the nearest town, and the numbered circles on the map cover a general area, not an exact spot.
- 1Jul 26, 2026Giant Lentinus Neolentinus ponderosusin San Bernardino National Forest, CA · iNaturalist photo, research grade · original record
- 2Jul 13, 2026Cryptic Globe Fungus Cryptoporus volvatusin San Bernardino National Forest, CA · iNaturalist photo, research grade · original record
- 3Jun 15, 2026False Parasol Chlorophyllum molybditesnear Redlands, CA · iNaturalist photo, research grade · original record
- 4Mar 28, 2026Desert Inkcap Montagnea arenariain San Bernardino County, CA · iNaturalist photo, research grade · original record
- 5Mar 22, 2026Desert Inkcap Montagnea arenarianear Piñon Hills, CA · iNaturalist photo, research grade · original record
- 6Feb 16, 2026Desert Shaggymane Podaxis pistillarisin San Bernardino County, CA · iNaturalist photo, research grade · original record
- 7
Jan 18, 2026Salty Mushroom Agaricus bernardiinear Chino, CA · iNaturalist photo, research grade · original record - 8
Jan 6, 2026Big Sheath Mushroom Volvopluteus gloiocephalusnear Mentone, CA · iNaturalist photo, research grade · original record - 9Dec 1, 2025Honey Fungus Armillaria melleanear Morongo Valley, CA · iNaturalist photo, research grade · original record
- 10Nov 28, 2025Honey Fungus Armillaria melleanear Morongo Valley, CA · iNaturalist photo, research grade · original record
Many sightings are on private land. Always get the landowner's permission, and follow the rules of parks and forests, which often limit or ban collecting.
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.
How we built this page
2,288 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 1,596 CC0 and 692 CC BY 4.0. See about the data for the full citation.