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Mushrooms in California
Updated October 2026 · from open GBIF records
108,703mushroom records
52county pages
Augbusiest month
108,703 records since 1812 (67,535 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 in this state:
California Jack O' Lantern Omphalotus olivascens521 January records since 2011
Yellow Fieldcap Bolbitius titubans352 January records since 2011
Wood Blewit Lepista nuda306 January records since 2011
Fly Agaric Amanita muscaria304 January records since 2011
Golden Milk Cap Lactarius alnicola301 January records since 2011
Turkeytail Trametes versicolor275 January records since 2011
Hairy Curtain Crust Stereum hirsutum245 January records since 2011
Big Sheath Mushroom Volvopluteus gloiocephalus239 January records since 2011
Usually recorded in February in this state:
- Turkeytail Trametes versicolor250 February records since 2011
- Hairy Curtain Crust Stereum hirsutum190 February records since 2011
- California Jack O' Lantern Omphalotus olivascens181 February records since 2011
Mulch Maids Leratiomyces percevalii174 February records since 2011- Yellow Fieldcap Bolbitius titubans160 February records since 2011
Common Porecrust, Split Gill Fungus Schizophyllum commune160 February records since 2011
Bittersweet Orange Ringless Amanita Amanita velosa131 February records since 2011- Big Sheath Mushroom Volvopluteus gloiocephalus109 February records since 2011
Usually recorded in March in this state:
- Bittersweet Orange Ringless Amanita Amanita velosa208 March records since 2011
- Turkeytail Trametes versicolor196 March records since 2011
- Mulch Maids Leratiomyces percevalii167 March records since 2011
- Hairy Curtain Crust Stereum hirsutum152 March records since 2011
- Common Porecrust, Split Gill Fungus Schizophyllum commune127 March records since 2011
- California Jack O' Lantern Omphalotus olivascens93 March records since 2011
Red Cage Clathrus ruber76 March records since 2011- Yellow Fieldcap Bolbitius titubans74 March records since 2011
Usually recorded in April in this state:
- Turkeytail Trametes versicolor153 April records since 2011
- Bittersweet Orange Ringless Amanita Amanita velosa152 April records since 2011
- Common Porecrust, Split Gill Fungus Schizophyllum commune102 April records since 2011
- Red Cage Clathrus ruber94 April records since 2011
- Hairy Curtain Crust Stereum hirsutum87 April records since 2011
- Mulch Maids Leratiomyces percevalii71 April records since 2011
- Birch Mazegill, Gilled Polypore Lenzites betulinus63 April records since 2011
Spring Fieldcap Agrocybe praecox55 April records since 2011
Usually recorded in May in this state:
- Turkeytail Trametes versicolor83 May records since 2011
Cryptic Globe Fungus Cryptoporus volvatus81 May records since 2011- Red Cage Clathrus ruber81 May records since 2011
- Common Porecrust, Split Gill Fungus Schizophyllum commune53 May records since 2011
Snowmelt Clitocybe Clitocybe glacialis45 May records since 2011- Hairy Curtain Crust Stereum hirsutum37 May records since 2011
Desert Inkcap Montagnea arenaria32 May records since 2011
Artist's Conk Ganoderma brownii31 May records since 2011
Usually recorded in June in this state:
- Cryptic Globe Fungus Cryptoporus volvatus105 June records since 2011
- Turkeytail Trametes versicolor54 June records since 2011
- Red Cage Clathrus ruber45 June records since 2011
False Parasol Chlorophyllum molybdites32 June records since 2011
Northern Red Belt Fomitopsis mounceae31 June records since 2011- Artist's Conk Ganoderma brownii26 June records since 2011
- Snowmelt Clitocybe Clitocybe glacialis25 June records since 2011
Sculpted Puffball Calvatia sculpta23 June records since 2011
Usually recorded in July in this state:
Giant Lentinus Neolentinus ponderosus84 July records since 2011- Cryptic Globe Fungus Cryptoporus volvatus67 July records since 2011
- False Parasol Chlorophyllum molybdites50 July records since 2011
- Turkeytail Trametes versicolor41 July records since 2011
- Red Cage Clathrus ruber31 July records since 2011
Prince Agaricus augustus31 July records since 2011- Northern Red Belt Fomitopsis mounceae22 July records since 2011
- Artist's Conk Ganoderma brownii21 July records since 2011
Usually recorded in August in this state:
- False Parasol Chlorophyllum molybdites86 August records since 2011
- Cryptic Globe Fungus Cryptoporus volvatus44 August records since 2011
- Turkeytail Trametes versicolor38 August records since 2011
Western Chicken-Of-The-Woods Laetiporus gilbertsonii35 August records since 2011- Giant Lentinus Neolentinus ponderosus33 August records since 2011
- Red Cage Clathrus ruber23 August records since 2011
Majestic Amanita Amanita augusta23 August records since 2011
Brown Cubical Rot Laetiporus conifericola23 August records since 2011
Usually recorded in September in this state:
- Western Chicken-Of-The-Woods Laetiporus gilbertsonii213 September records since 2011
- False Parasol Chlorophyllum molybdites90 September records since 2011
- Cryptic Globe Fungus Cryptoporus volvatus47 September records since 2011
- Turkeytail Trametes versicolor34 September records since 2011
- Majestic Amanita Amanita augusta29 September records since 2011
- Red Cage Clathrus ruber23 September records since 2011
- Artist's Conk Ganoderma brownii23 September records since 2011
Plantpot Dapperling Leucocoprinus birnbaumii23 September records since 2011
Usually recorded in October in this state:
- Western Chicken-Of-The-Woods Laetiporus gilbertsonii266 October records since 2011
- Red Cage Clathrus ruber53 October records since 2011
- False Parasol Chlorophyllum molybdites50 October records since 2011
Cep Boletus edulis47 October records since 2011- Turkeytail Trametes versicolor44 October records since 2011
Lawyer's Wig Coprinus comatus32 October records since 2011- Fly Agaric Amanita muscaria31 October records since 2011
False Chanterelle Hygrophoropsis aurantiaca29 October records since 2011
Usually recorded in November in this state:
- Western Chicken-Of-The-Woods Laetiporus gilbertsonii160 November records since 2011
- Fly Agaric Amanita muscaria157 November records since 2011
Death Cap Amanita phalloides144 November records since 2011- California Jack O' Lantern Omphalotus olivascens132 November records since 2011
Sulphur Tuft Hypholoma fasciculare122 November records since 2011- Hairy Curtain Crust Stereum hirsutum112 November records since 2011
Ballen's American Caesar Amanita calyptroderma110 November records since 2011- Yellow Fieldcap Bolbitius titubans106 November records since 2011
Usually recorded in December in this state:
- Fly Agaric Amanita muscaria403 December records since 2011
- California Jack O' Lantern Omphalotus olivascens347 December records since 2011
- Death Cap Amanita phalloides261 December records since 2011
Honey Fungus Armillaria mellea254 December records since 2011- Hairy Curtain Crust Stereum hirsutum240 December records since 2011
- Golden Milk Cap Lactarius alnicola209 December records since 2011
- Turkeytail Trametes versicolor181 December records since 2011
- Yellow Fieldcap Bolbitius titubans175 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.
Often-recorded species
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Ranked by how often each appears in county top-40 lists. This is a guide to what gets recorded, not to what is common or safe.
Best months to look
Records by month, all years. Busiest: Aug, Dec, Jan.
Counties
Counties with fewer than 100 records (6) are listed here without their own page.
Bring along
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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.