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Mushrooms in Tuolumne County, California
Updated October 2026 · from open GBIF records
3,614mushroom records
320species recorded
Augbusiest month
3,614 records since 1915 (212 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.
Usually recorded in January here:
California Jack O' Lantern Omphalotus olivascens9 January records across all years
Turkeytail Trametes versicolor5 January records across all years
Cowboy's Handkerchief Hygrophorus eburneus2 January records across all years- Birch Mazegill, Gilled Polypore Lenzites betulinus2 January records across all years
Too few past records in February here to list species.
Too few past records in March here to list species.
Usually recorded in April here:
- Calocybe onychina2 April records across all years
Floccularia albolanaripes2 April records across all years
Bald Cavalier Melanoleuca melaleuca2 April records across all years
False Yellowfoot Chrysomphalina chrysophylla2 April records across all years- Turkeytail Trametes versicolor2 April records across all years
Usually recorded in May here:
Purple-Red Hygrophorus Hygrophorus purpurascens6 May records across all years
Cryptic Globe Fungus Cryptoporus volvatus5 May records across all years
Sculptured Puffball Calbovista subsculpta5 May records across all years
Snowmelt Clitocybe Clitocybe glacialis4 May records across all years
Hygrophorus subalpinus4 May records across all years- Floccularia albolanaripes4 May records across all years
Barometer Earthstar Astraeus hygrometricus3 May records across all years
Infundibulicybe squamulosa2 May records across all years- Chromosera cyanophylla2 May records across all years
Snowmelt Mycena Mycena nivicola2 May records across all years
Clitocybe albirhiza2 May records across all years
Sulphur Tuft Hypholoma fasciculare2 May records across all years
Usually recorded in June here:
- Leptosporomyces mundus5 June records since 2011
Mock Oyster Mushroom Phyllotopsis nidulans3 June records since 2011
Veluticeps abietina2 June records since 2011
Ballen's Spring American Caesar Amanita vernicoccora2 June records since 2011- Cryptic Globe Fungus Cryptoporus volvatus2 June records since 2011
Usually recorded in July here:
Giant Lentinus Neolentinus ponderosus6 July records since 2011- Alpova trappei3 July records since 2011
- Tyromyces leucospongius3 July records since 2011
- Pholiota lignicola2 July records since 2011
- Cryptic Globe Fungus Cryptoporus volvatus2 July records since 2011
- Sculptured Puffball Calbovista subsculpta2 July records since 2011
Pycnoporellus fulgens2 July records since 2011
Fly Agaric Amanita muscaria2 July records since 2011
Usually recorded in August here:
- Cryptic Globe Fungus Cryptoporus volvatus3 August records since 2011
Cep Boletus edulis3 August records since 2011- Endoptychum depressum2 August records since 2011
Blue-Staining Slippery Jack Suillus tomentosus2 August records since 2011- Gastroboletus amyloideus2 August records since 2011
- Lactarius crassus2 August records since 2011
Sunshine Amanita Amanita aprica2 August records since 2011- Giant Lentinus Neolentinus ponderosus2 August records since 2011
Usually recorded in September here:
Jellied Bolete Suillus flavidus7 September records across all years
Suillus riparius4 September records across all years- Boletus orovillus3 September records across all years
- Blue-Staining Slippery Jack Suillus tomentosus3 September records across all years
The Granulated Bolete Suillus granulatus3 September records across all years
Bitter Beech Bolete Caloboletus calopus3 September records across all years
Herald Of Winter Hygrophorus hypothejus2 September records across all years
Saffron Milk-Cap Lactarius deliciosus2 September records across all years- Lactarius riparius2 September records across all years
Lilac Bonnet Mycena pura2 September records across all years
Short-Stalked Suillus Suillus brevipes2 September records across all years
Brownish Chroogomphus Chroogomphus rutilus2 September records across all years
Usually recorded in October here:
- Suillus riparius6 October records across all years
Scaly Chanterelle Turbinellus floccosus5 October records across all years- Purple-Red Hygrophorus Hygrophorus purpurascens4 October records across all years
Laughing Jim Gymnopilus junonius3 October records across all years
Conifer Tuft Hypholoma capnoides3 October records across all years- Floccularia albolanaripes3 October records across all years
Lawyer's Wig Coprinus comatus3 October records across all years
Suillus pseudobrevipes3 October records across all years
Giant Pine Spike Chroogomphus pseudovinicolor3 October records across all years- Saffron Milk-Cap Lactarius deliciosus2 October records across all years
- Fly Agaric Amanita muscaria2 October records across all years
Spring Cavalier Melanoleuca cognata2 October records across all years
Usually recorded in November here:
Suillus brunnescens6 November records across all years
Liver Bolete Suillellus amygdalinus4 November records across all years- Short-Stalked Suillus Suillus brevipes4 November records across all years
Fairy-Cakes Hebeloma crustuliniforme3 November records across all years
Poor Man's Slippery Jack Suillus fuscotomentosus3 November records across all years- Scaly Chanterelle Turbinellus floccosus3 November records across all years
Common Collybia Gymnopus dryophilus2 November records across all years
Butter Bolete Butyriboletus appendiculatus2 November records across all years
Zeller's Bolete Xerocomellus zelleri2 November records across all years
Lentinellus vulpinus2 November records across all years- Blue-Staining Slippery Jack Suillus tomentosus2 November records across all years
False Chanterelle Hygrophoropsis aurantiaca2 November records across all years
Usually recorded in December here:
Cystoderma fallax5 December records across all years- Liver Bolete Suillellus amygdalinus4 December records across all years
- California Jack O' Lantern Omphalotus olivascens3 December records across all years
Western Amethyst Laccaria Laccaria amethysteo-occidentalis3 December records across all years
Golden Milk Cap Lactarius alnicola2 December records across all years- Cowboy's Handkerchief Hygrophorus eburneus2 December records across all years
Galactic Milk Cap Lactarius xanthogalactus2 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 | 19 | |
| 2 | 16 | |
| 3 | 15 | |
| 4 | 14 | |
| 5 | 13 | |
| 6 | 12 | |
| 7 | 12 | |
| 8 | 10 | |
| 9 | 10 | |
| 10 | 9 | |
| 11 | 9 | |
| 12 | 9 | |
| 13 | 8 | |
| 14 | 8 | |
| 15 | 8 |
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: Aug, Jun, May.
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 12, 2026Tyromyces leucospongiusin Tuolumne County, CA (location blurred by the observer) · iNaturalist photo, research grade · original record
- 2Jul 11, 2026Sculptured Puffball Calbovista subsculptain Tuolumne County, CA (location blurred by the observer) · iNaturalist photo, research grade · original record
- 3Jan 28, 2026Birch Mazegill, Gilled Polypore Lenzites betulinusnear Phoenix Lake, CA · iNaturalist photo, research grade · original record
- 4Jan 23, 2026Turkeytail Trametes versicolornear Phoenix Lake, CA · iNaturalist photo, research grade · original record
- 5Jan 11, 2026Fomes arctostaphylinear Sonora, CA · iNaturalist photo, research grade · original record
- 6Jan 11, 2026California Jack O' Lantern Omphalotus olivascensnear Sonora, CA · iNaturalist photo, research grade · original record
- 7Jan 11, 2026California Jack O' Lantern Omphalotus olivascensnear Sonora, CA · iNaturalist photo, research grade · original record
- 8Jan 11, 2026California Jack O' Lantern Omphalotus olivascensnear Sonora, CA · iNaturalist photo, research grade · original record
- 9Jan 11, 2026California Jack O' Lantern Omphalotus olivascensnear Sonora, CA · iNaturalist photo, research grade · original record
- 10Jan 11, 2026California Jack O' Lantern Omphalotus olivascensnear Sonora, 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
3,614 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 3,086 CC0 and 528 CC BY 4.0. See about the data for the full citation.