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Mushrooms in Nevada County, California
Updated October 2026 · from open GBIF records
1,004mushroom records
325species recorded
Decbusiest month
1,004 records since 1913 (660 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:
Questionable Stropharia Stropharia ambigua4 January records since 2011
Turkeytail Trametes versicolor3 January records since 2011
Floccularia albolanaripes3 January records since 2011
Deep Purple Bolete Xerocomellus atropurpureus3 January records since 2011
California Jack O' Lantern Omphalotus olivascens3 January records since 2011
Purple Fuzz Punctularia atropurpurascens2 January records since 2011
Galactic Milk Cap Lactarius xanthogalactus2 January records since 2011
Tall Psathyrella Psathyrella longipes2 January records since 2011
Entoloma hirtipes2 January records since 2011
Western Deer Mushroom Pluteus exilis2 January records since 2011
Common Bird's Nest Crucibulum laeve2 January records since 2011
Usually recorded in February here:
Hairy Curtain Crust Stereum hirsutum2 February records since 2011
Usually recorded in March here:
Winter Russula Russula cremoricolor3 March records since 2011- Fomes arctostaphyli3 March records since 2011
Usually recorded in April here:
Northern Red Belt Fomitopsis mounceae2 April records since 2011
Ballen's Spring American Caesar Amanita vernicoccora2 April records since 2011
Bittersweet Orange Ringless Amanita Amanita velosa2 April records since 2011
Usually recorded in May here:
- Ballen's Spring American Caesar Amanita vernicoccora5 May records across all years
Cryptic Globe Fungus Cryptoporus volvatus4 May records across all years- Turkeytail Trametes versicolor3 May records across all years
Clitocybe albirhiza2 May records across all years
Amanita lanei2 May records across all years
Sculptured Puffball Calbovista subsculpta2 May records across all years
Wintergreen Snowmelt Pholiota Pholiota nubigena2 May records across all years
Snowmelt Clitocybe Clitocybe glacialis2 May records across all years
Western American False Panther Amanita pantherinoides2 May records across all years
Usually recorded in June here:
- Cryptic Globe Fungus Cryptoporus volvatus11 June records across all years
Ramaria rasilispora3 June records across all years
Ramaria rubricarnata3 June records across all years- Snowmelt Clitocybe Clitocybe glacialis3 June records across all years
Phlegmacium sublilacinum2 June records across all years- Wintergreen Snowmelt Pholiota Pholiota nubigena2 June records across all years
Mycena niveipes2 June records across all years- Crepidotus fimbriatus2 June records across all years
- Tyromyces leucospongius2 June records across all years
Usually recorded in July here:
- Cryptic Globe Fungus Cryptoporus volvatus6 July records since 2011
Tricholoma triste3 July records since 2011
Giant Lentinus Neolentinus ponderosus3 July records since 2011
Gastroboletus turbinatus3 July records since 2011- Rhizopogon sordidus2 July records since 2011
Gastropila fumosa2 July records since 2011- Phlegmacium subolivascens2 July records since 2011
- Amanita alpinicola2 July records since 2011
Brown Cubical Rot Laetiporus conifericola2 July records since 2011
Usually recorded in August here:
- Cryptic Globe Fungus Cryptoporus volvatus3 August records since 2011
- Giant Lentinus Neolentinus ponderosus3 August records since 2011
- Brown Cubical Rot Laetiporus conifericola3 August records since 2011
Ramaria magnipes2 August records since 2011
West Coast Reishi Ganoderma oregonense2 August records since 2011
Usually recorded in September here:
Fly Agaric Amanita muscaria4 September records across all years
Bitter Beech Bolete Caloboletus calopus3 September records across all years
The Granulated Bolete Suillus granulatus3 September records across all years
Brownish Chroogomphus Chroogomphus rutilus2 September records across all years
Blue-Staining Slippery Jack Suillus tomentosus2 September records across all years
Saffron Milk-Cap Lactarius deliciosus2 September records across all years
Short-Stalked Suillus Suillus brevipes2 September records across all years- Brown Cubical Rot Laetiporus conifericola2 September records across all years
Usually recorded in October here:
Fir-Cone Mushroom Strobilurus trullisatus3 October records since 2011- Chroogomphus albipes2 October records since 2011
Western Painted Suillus Suillus lakei2 October records since 2011
Rhizopogon occidentalis2 October records since 2011
Poor Man's Slippery Jack Suillus fuscotomentosus2 October records since 2011
Usually recorded in November here:
Ballen's American Caesar Amanita calyptroderma4 November records since 2011- Fir-Cone Mushroom Strobilurus trullisatus3 November records since 2011
- Questionable Stropharia Stropharia ambigua3 November records since 2011
- Coprinopsis marcida2 November records since 2011
Common Collybia Gymnopus dryophilus2 November records since 2011
Branched Shanklet Dendrocollybia racemosa2 November records since 2011
Cat's Tongue Pseudohydnum gelatinosum2 November records since 2011- California Jack O' Lantern Omphalotus olivascens2 November records since 2011
Lawyer's Wig Coprinus comatus2 November records since 2011
Usually recorded in December here:
Western Amethyst Laccaria Laccaria amethysteo-occidentalis7 December records since 2011
Blue-Staining Suillus Suillus caerulescens7 December records since 2011- Questionable Stropharia Stropharia ambigua6 December records since 2011
Conifer Tuft Hypholoma capnoides5 December records since 2011
Cracked-Cap Bolete Xerocomellus diffractus4 December records since 2011- Turkeytail Trametes versicolor3 December records since 2011
- Entoloma hirtipes3 December records since 2011
- Branched Shanklet Dendrocollybia racemosa3 December records since 2011
Elastic Oysterling Panellus mitis3 December records since 2011
Mauve Bonnet Mycena meliigena3 December records since 2011
Pholiota decorata3 December records since 2011- Calonarius luteicolor3 December records since 2011
⚠ 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 | 29 | |
| 2 | 15 | |
| 3 | 14 | |
| 4 | Leccinum arbuticola | 11 |
| 5 | 11 | |
| 6 | 10 | |
| 7 | 10 | |
| 8 | 9 | |
| 9 | 8 | |
| 10 | 8 | |
| 11 | 8 | |
| 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: Dec, Nov, Jan.
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 7 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.
- 1Aug 14, 2026West Coast Reishi Ganoderma oregonensein Tahoe National Forest, CA · iNaturalist photo, research grade · original record
- 2Jun 27, 2026Cryptic Globe Fungus Cryptoporus volvatusnear Truckee, CA · iNaturalist photo, research grade · original record
- 3May 29, 2026Western American False Panther Amanita pantherinoidesin Tahoe National Forest, CA · iNaturalist photo, research grade · original record
- 4Apr 24, 2026Turkeytail Trametes versicolorin South Yuba River State Park, CA · iNaturalist photo, research grade · original record
- 5
Dec 22, 2025White Spindles Clavaria fragilisnear Nevada City, CA · iNaturalist photo, research grade · original record - 6Dec 20, 2025Birch Mazegill, Gilled Polypore Lenzites betulinusin South Yuba River State Park, CA · iNaturalist photo, research grade · original record
- 7Dec 5, 2025Questionable Stropharia Stropharia ambiguanear Rough and Ready, CA (location blurred by the observer) · 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
1,004 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 456 CC0 and 548 CC BY 4.0. See about the data for the full citation.