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Mushrooms in San Francisco County, California
Updated October 2026 · from open GBIF records
3,208mushroom records
405species recorded
Decbusiest month
3,208 records since 1882 (2,112 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:
Chip Cherries Leratiomyces ceres61 January records since 2011
Wood Blewit Lepista nuda35 January records since 2011
Honey Fungus Armillaria mellea27 January records since 2011
Scurfy Twiglet Tubaria furfuracea24 January records since 2011
Yellow Fieldcap Bolbitius titubans24 January records since 2011
False Chanterelle Hygrophoropsis aurantiaca22 January records since 2011
Mulch Maids Leratiomyces percevalii17 January records since 2011
Fly Agaric Amanita muscaria15 January records since 2011
Turkeytail Trametes versicolor13 January records since 2011
Big Sheath Mushroom Volvopluteus gloiocephalus12 January records since 2011
Pine Spikes Chroogomphus vinicolor10 January records since 2011
Brown Parasol Chlorophyllum brunneum10 January records since 2011
Usually recorded in February here:
- Chip Cherries Leratiomyces ceres29 February records since 2011
- Mulch Maids Leratiomyces percevalii19 February records since 2011
Red Cage Clathrus ruber15 February records since 2011- Turkeytail Trametes versicolor11 February records since 2011
- Yellow Fieldcap Bolbitius titubans10 February records since 2011
- Scurfy Twiglet Tubaria furfuracea9 February records since 2011
- Big Sheath Mushroom Volvopluteus gloiocephalus7 February records since 2011
Hairy Curtain Crust Stereum hirsutum6 February records since 2011
Common Porecrust, Split Gill Fungus Schizophyllum commune5 February records since 2011- False Chanterelle Hygrophoropsis aurantiaca5 February records since 2011
Spring Fieldcap Agrocybe praecox4 February records since 2011
Cryptic Globe Fungus Cryptoporus volvatus4 February records since 2011
Usually recorded in March here:
- Chip Cherries Leratiomyces ceres28 March records since 2011
- Red Cage Clathrus ruber15 March records since 2011
- Mulch Maids Leratiomyces percevalii15 March records since 2011
Glistening Ink-Cap Coprinellus micaceus9 March records since 2011- Yellow Fieldcap Bolbitius titubans8 March records since 2011
- Turkeytail Trametes versicolor8 March records since 2011
- Common Porecrust, Split Gill Fungus Schizophyllum commune6 March records since 2011
Conocybe rugosa5 March records since 2011- Big Sheath Mushroom Volvopluteus gloiocephalus5 March records since 2011
- Spring Fieldcap Agrocybe praecox5 March records since 2011
Sulphur Tuft Hypholoma fasciculare4 March records since 2011- Wood Blewit Lepista nuda4 March records since 2011
Usually recorded in April here:
- Red Cage Clathrus ruber23 April records since 2011
- Spring Fieldcap Agrocybe praecox14 April records since 2011
- Chip Cherries Leratiomyces ceres10 April records since 2011
- Mulch Maids Leratiomyces percevalii9 April records since 2011
- Brown Parasol Chlorophyllum brunneum9 April records since 2011
- Turkeytail Trametes versicolor8 April records since 2011
Yellow Stainer Agaricus xanthodermus8 April records since 2011
Mulch Fieldcap Agrocybe putaminum8 April records since 2011- Glistening Ink-Cap Coprinellus micaceus8 April records since 2011
Goldenhaired Inkcap Parasola auricoma4 April records since 2011- Yellow Fieldcap Bolbitius titubans4 April records since 2011
Pale Brittlestem Candolleomyces candolleanus4 April records since 2011
Usually recorded in May here:
- Red Cage Clathrus ruber15 May records since 2011
- Mulch Maids Leratiomyces percevalii5 May records since 2011
Brown Hay Cap Panaeolina foenisecii4 May records since 2011- Yellow Fieldcap Bolbitius titubans4 May records since 2011
- Brown Parasol Chlorophyllum brunneum3 May records since 2011
- Turkeytail Trametes versicolor3 May records since 2011
- Mulch Fieldcap Agrocybe putaminum3 May records since 2011
Prince Agaricus augustus2 May records since 2011- Spring Fieldcap Agrocybe praecox2 May records since 2011
- Cryptic Globe Fungus Cryptoporus volvatus2 May records since 2011
- Common Porecrust, Split Gill Fungus Schizophyllum commune2 May records since 2011
Flocculose Inkcap Coprinellus flocculosus2 May records since 2011
Usually recorded in June here:
- Red Cage Clathrus ruber10 June records since 2011
- Chip Cherries Leratiomyces ceres3 June records since 2011
- Brown Hay Cap Panaeolina foenisecii3 June records since 2011
- Pale Brittlestem Candolleomyces candolleanus3 June records since 2011
Artist's Conk Ganoderma brownii3 June records since 2011- Glistening Ink-Cap Coprinellus micaceus2 June records since 2011
- Yellow Stainer Agaricus xanthodermus2 June records since 2011
- Turkeytail Trametes versicolor2 June records since 2011
- Cryptic Globe Fungus Cryptoporus volvatus2 June records since 2011
- Prince Agaricus augustus2 June records since 2011
California Agaricus Agaricus californicus2 June records since 2011
Sandy Stilt Puffball Battarrea phalloides2 June records since 2011
Usually recorded in July here:
- Chip Cherries Leratiomyces ceres11 July records since 2011
- Brown Parasol Chlorophyllum brunneum7 July records since 2011
- Pale Brittlestem Candolleomyces candolleanus7 July records since 2011
- California Agaricus Agaricus californicus6 July records since 2011
- Red Cage Clathrus ruber6 July records since 2011
Hare'Sfoot Inkcap Coprinopsis lagopus6 July records since 2011- Hairy Curtain Crust Stereum hirsutum4 July records since 2011
- Scurfy Twiglet Tubaria furfuracea4 July records since 2011
- Big Sheath Mushroom Volvopluteus gloiocephalus3 July records since 2011
- Mulch Fieldcap Agrocybe putaminum2 July records since 2011
Deer Mushroom Pluteus cervinus2 July records since 2011
Peeling Oysterling Crepidotus mollis2 July records since 2011
Usually recorded in August here:
- Red Cage Clathrus ruber13 August records since 2011
Western Chicken-Of-The-Woods Laetiporus gilbertsonii5 August records since 2011- California Agaricus Agaricus californicus5 August records since 2011
- Marasmius croceus4 August records since 2011
- Yellow Stainer Agaricus xanthodermus4 August records since 2011
- Hare'Sfoot Inkcap Coprinopsis lagopus4 August records since 2011
- Pale Brittlestem Candolleomyces candolleanus3 August records since 2011
Stereum ochraceoflavum2 August records since 2011- Entoloma hebes2 August records since 2011
- Hydnangium carneum2 August records since 2011
- Resupinatus trichotis2 August records since 2011
- Mycena clavularis2 August records since 2011
Usually recorded in September here:
- Western Chicken-Of-The-Woods Laetiporus gilbertsonii26 September records since 2011
- Red Cage Clathrus ruber9 September records since 2011
- Chip Cherries Leratiomyces ceres4 September records since 2011
- Prince Agaricus augustus3 September records since 2011
- Turkeytail Trametes versicolor2 September records since 2011
Plantpot Dapperling Leucocoprinus birnbaumii2 September records since 2011- Cryptic Globe Fungus Cryptoporus volvatus2 September records since 2011
- Sandy Stilt Puffball Battarrea phalloides2 September records since 2011
Onion-Stalk Parasol Leucocoprinus cepistipes2 September records since 2011
Usually recorded in October here:
- Red Cage Clathrus ruber19 October records since 2011
- Western Chicken-Of-The-Woods Laetiporus gilbertsonii18 October records since 2011
- Chip Cherries Leratiomyces ceres6 October records since 2011
- California Agaricus Agaricus californicus5 October records since 2011
- Yellow Stainer Agaricus xanthodermus4 October records since 2011
- Turkeytail Trametes versicolor3 October records since 2011
- Pine Spikes Chroogomphus vinicolor3 October records since 2011
- Sandy Stilt Puffball Battarrea phalloides3 October records since 2011
Lawyer's Wig Coprinus comatus3 October records since 2011
Smoky Dapperling Leucoagaricus barssii2 October records since 2011
Pungent Slippery Jack Suillus pungens2 October records since 2011- Cryptic Globe Fungus Cryptoporus volvatus2 October records since 2011
Usually recorded in November here:
- Chip Cherries Leratiomyces ceres32 November records since 2011
- Honey Fungus Armillaria mellea24 November records since 2011
- Red Cage Clathrus ruber19 November records since 2011
- Western Chicken-Of-The-Woods Laetiporus gilbertsonii17 November records since 2011
- Yellow Fieldcap Bolbitius titubans8 November records since 2011
- Hare'Sfoot Inkcap Coprinopsis lagopus7 November records since 2011
- Parasola conopila7 November records since 2011
- California Agaricus Agaricus californicus5 November records since 2011
- Brown Parasol Chlorophyllum brunneum5 November records since 2011
- Yellow Stainer Agaricus xanthodermus5 November records since 2011
- Sulphur Tuft Hypholoma fasciculare5 November records since 2011
- Turkeytail Trametes versicolor5 November records since 2011
Usually recorded in December here:
- Honey Fungus Armillaria mellea55 December records since 2011
- Chip Cherries Leratiomyces ceres49 December records since 2011
- False Chanterelle Hygrophoropsis aurantiaca25 December records since 2011
- Fly Agaric Amanita muscaria25 December records since 2011
Western Jumbo Gym Gymnopilus ventricosus24 December records since 2011- Wood Blewit Lepista nuda23 December records since 2011
- Red Cage Clathrus ruber22 December records since 2011
- Scurfy Twiglet Tubaria furfuracea21 December records since 2011
Purple Edge Bonnet Mycena purpureofusca16 December records since 2011- Pungent Slippery Jack Suillus pungens13 December records since 2011
- Yellow Fieldcap Bolbitius titubans13 December records since 2011
- Sulphur Tuft Hypholoma fasciculare12 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 | 236 | |
| 2 | 175 | |
| 3 | 119 | |
| 4 | 89 | |
| 5 | 87 | |
| 6 | 80 | |
| 7 | 71 | |
| 8 | 65 | |
| 9 | 61 | |
| 10 | 60 | |
| 11 | 60 | |
| 12 | 57 | |
| 13 | 54 | |
| 14 | 50 | |
| 15 | 49 |
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, Jan, Nov.
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.
- 1Sep 28, 2026Turkeytail Trametes versicolorin Golden Gate Park, CA · iNaturalist photo, research grade · original record
- 2Sep 23, 2026Western Chicken-Of-The-Woods Laetiporus gilbertsoniiin Golden Gate Park, CA · iNaturalist photo, research grade · original record
- 3Sep 19, 2026Red Cage Clathrus ruberin Golden Gate Park, CA · iNaturalist photo, research grade · original record
- 4Sep 4, 2026Western Chicken-Of-The-Woods Laetiporus gilbertsoniiin Golden Gate Park, CA · iNaturalist photo, research grade · original record
- 5Sep 1, 2026Western Chicken-Of-The-Woods Laetiporus gilbertsoniiin Golden Gate Park, CA · iNaturalist photo, research grade · original record
- 6Sep 1, 2026Red Cage Clathrus ruberin Golden Gate Park, CA · iNaturalist photo, research grade · original record
- 7Aug 31, 2026Western Chicken-Of-The-Woods Laetiporus gilbertsoniiin Pine Lake Park, CA · iNaturalist photo, research grade · original record
- 8Aug 29, 2026Prince Agaricus augustusin Golden Gate Park, CA · iNaturalist photo, research grade · original record
- 9Aug 28, 2026Hare'Sfoot Inkcap Coprinopsis lagopusin Golden Gate Park, CA · iNaturalist photo, research grade · original record
- 10Aug 25, 2026Turkeytail Trametes versicolorin Golden Gate Park, 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
3,208 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 1,321 CC0 and 1,887 CC BY 4.0. See about the data for the full citation.