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Mushrooms in Madera County, California
Updated October 2026 · from open GBIF records
715mushroom records
305species recorded
Febbusiest month
715 records since 1874 (261 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 olivascens3 January records across all years
Big Sheath Mushroom Volvopluteus gloiocephalus3 January records across all years
Galactic Milk Cap Lactarius xanthogalactus3 January records across all years- Birch Mazegill, Gilled Polypore Lenzites betulinus3 January records across all years
Yellow Fieldcap Bolbitius titubans2 January records across all years
Oyster Mushroom Pleurotus ostreatus2 January records across all years
Usually recorded in February here:
Marasmiellus candidus4 February records across all years
Hairy Curtain Crust Stereum hirsutum3 February records across all years
Common Conecap Conocybe tenera2 February records across all years
Deer Mushroom Pluteus cervinus2 February records across all years
Smoky Bracket Bjerkandera adusta2 February records across all years
Deadly Galerina Galerina marginata2 February records across all years
Rhizopogon occidentalis2 February records across all years
Barometer Earthstar Astraeus hygrometricus2 February records across all years
Sulphur Tuft Hypholoma fasciculare2 February records across all years
Rosy Earthstar Geastrum rufescens2 February records across all years
White Fibrecap Inocybe geophylla2 February records across all years
Cedarwood Waxcap Cuphophyllus russocoriaceus2 February records across all years
Usually recorded in March here:
Setchelliogaster tenuipes2 March records across all years
Usually recorded in April here:
Bittersweet Orange Ringless Amanita Amanita velosa2 April records across all years
Golden Bracket Fuscoporia gilva2 April records across all years
Desert Shaggymane Podaxis pistillaris2 April records across all years- Melanogaster ambiguus2 April records across all years
Giraffe Spots Peniophora albobadia2 April records across all years
Usually recorded in May here:
- Rhizopogon olivaceotinctus2 May records across all years
- Bovista leucoderma2 May records across all years
Mycena overholtsii2 May records across all years
Gastropila fumosa2 May records across all years
Usually recorded in June here:
- Entoloma majaloides2 June records since 2011
Torn Fibrecap Inocybe lacera2 June records since 2011
Orange Moss Navel Rickenella fibula2 June records since 2011
Spring King Boletus rex-veris2 June records since 2011
False Turkey-Tail Stereum ostrea2 June records since 2011
Usually recorded in July here:
Giant Lentinus Neolentinus ponderosus10 July records since 2011
Gymnopilus flavidellus2 July records since 2011- Cortinarius colymbadinus2 July records since 2011
Caloboletus frustosus2 July records since 2011- Orange Moss Navel Rickenella fibula2 July records since 2011
- Lactarius sphagneti2 July records since 2011
- Cortinarius niveotraganus2 July records since 2011
Brown Cubical Rot Laetiporus conifericola2 July records since 2011
Usually recorded in August here:
- Inocybe praetervisa2 August records since 2011
- Entoloma ortonii2 August records since 2011
Willow Deceiver Laccaria pumila2 August records since 2011- Xeromphalina campanelloides2 August records since 2011
Luxuriant Thoughshank Collybiopsis luxurians2 August records since 2011- Giant Lentinus Neolentinus ponderosus2 August records since 2011
Usually recorded in September here:
Bitter Beech Bolete Caloboletus calopus3 September records across all years
Brownish Chroogomphus Chroogomphus rutilus2 September records across all years
Red Cracking Bolete Xerocomellus chrysenteron2 September records across all years
The Granulated Bolete Suillus granulatus2 September records across all years
Pluteus fulvibadius2 September records across all years
Western Jumbo Gym Gymnopilus ventricosus2 September records across all years- Armillaria nabsnona2 September records across all years
Golden Pholiota Pholiota aurivella2 September records across all years
Field Mushroom Agaricus campestris2 September records across all years
Usually recorded in October here:
Deep Purple Bolete Xerocomellus atropurpureus2 October records across all years
Conifer Tuft Hypholoma capnoides2 October records across all years- Phlegmacium pansa2 October records across all years
- Cortinarius inconspicuus2 October records across all years
- Stump Puffball Lycoperdon pyriforme2 October records across all years
- Rhizopogon occidentalis2 October records across all years
Usually recorded in November here:
- California Jack O' Lantern Omphalotus olivascens3 November records across all years
- Sulphur Tuft Hypholoma fasciculare3 November records across all years
- Field Mushroom Agaricus campestris2 November records across all years
Entoloma edulis2 November records across all years- Barometer Earthstar Astraeus hygrometricus2 November records across all years
- Big Sheath Mushroom Volvopluteus gloiocephalus2 November records across all years
Western Chicken-Of-The-Woods Laetiporus gilbertsonii2 November records across all years
Bohemian Truffle Pisolithus arhizus2 November records across all years
Usually recorded in December here:
Honey Fungus Armillaria mellea3 December records across all years
Field Bird's Nest Cyathus olla2 December records across all years- California Jack O' Lantern Omphalotus olivascens2 December records across all years
- Suillus acerbus2 December records across all years
- Barometer Earthstar Astraeus hygrometricus2 December records across all years
- Field Mushroom Agaricus campestris2 December records across all years
- Big Sheath Mushroom Volvopluteus gloiocephalus2 December records across all years
Golden Milk Cap Lactarius alnicola2 December records across all years
Dung Roundhead Protostropharia semiglobata2 December records across all years
Lawyer's Wig Coprinus comatus2 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 | 13 | |
| 2 | 10 | |
| 3 | 9 | |
| 4 | 9 | |
| 5 | 9 | |
| 6 | 8 | |
| 7 | 8 | |
| 8 | 6 | |
| 9 | 6 | |
| 10 | 6 | |
| 11 | 6 | |
| 12 | 5 | |
| 13 | 5 | |
| 14 | 5 | |
| 15 | 4 |
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: Feb, Jul, Mar.
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 3, 2026Giant Lentinus Neolentinus ponderosusnear Mammoth Lakes, CA · iNaturalist photo, research grade · original record
- 2Jul 3, 2026Giant Lentinus Neolentinus ponderosusnear Mammoth Lakes, CA · iNaturalist photo, research grade · original record
- 3Jan 24, 2026Big Sheath Mushroom Volvopluteus gloiocephalusin San Joaquin Experimental Area, CA · iNaturalist photo, research grade · original record
- 4Jan 24, 2026Hairy Curtain Crust Stereum hirsutumin San Joaquin Experimental Area, CA · iNaturalist photo, research grade · original record
- 5Jan 24, 2026Big Sheath Mushroom Volvopluteus gloiocephalusin San Joaquin Experimental Area, CA · iNaturalist photo, research grade · original record
- 6Jan 24, 2026Big Sheath Mushroom Volvopluteus gloiocephalusin San Joaquin Experimental Area, CA · iNaturalist photo, research grade · original record
- 7Nov 12, 2025Sulphur Tuft Hypholoma fascicularein Sierra National Forest, CA · iNaturalist photo, research grade · original record
- 8Nov 12, 2025Tulosesus impatiensin Sierra National Forest, CA · iNaturalist photo, research grade · original record
- 9Jul 19, 2025Giant Lentinus Neolentinus ponderosusnear June Lake, CA · iNaturalist photo, research grade · original record
- 10Jul 9, 2025Giant Lentinus Neolentinus ponderosusnear Fish Camp, 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
715 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 435 CC0 and 280 CC BY 4.0. See about the data for the full citation.