Mushrooms in Butte County, California
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 olivascens6 January records since 2011
Hairy Curtain Crust Stereum hirsutum5 January records since 2011
Yellow Fieldcap Bolbitius titubans3 January records since 2011
Galactic Milk Cap Lactarius xanthogalactus2 January records since 2011
Turkeytail Trametes versicolor2 January records since 2011
Crystal Brain Fungus Myxarium nucleatum2 January records since 2011
Wood Blewit Lepista nuda2 January records since 2011
Honey Fungus Armillaria mellea2 January records since 2011
Western Amethyst Laccaria Laccaria amethysteo-occidentalis2 January records since 2011
Usually recorded in February here:
- Turkeytail Trametes versicolor3 February records since 2011
- Yellow Fieldcap Bolbitius titubans2 February records since 2011
Usually recorded in March here:
- Turkeytail Trametes versicolor4 March records since 2011
- Hairy Curtain Crust Stereum hirsutum3 March records since 2011
Usually recorded in April here:
Ballen's Spring American Caesar Amanita vernicoccora2 April records since 2011
Usually recorded in May here:
Lachnella alboviolascens4 May records across all years
Cryptic Globe Fungus Cryptoporus volvatus2 May records across all years
Usually recorded in June here:
Gautieria monticola7 June records across all years
Common Porecrust, Split Gill Fungus Schizophyllum commune4 June records across all years- Turkeytail Trametes versicolor2 June records across all years
- Lachnella alboviolascens2 June records across all years
Usually recorded in July here:
Dyer's Mazegill Phaeolus schweinitzii5 July records across all years- Secotium decipiens2 July records across all years
Usually recorded in August here:
False Parasol Chlorophyllum molybdites2 August records across all years
Sculptured Puffball Calbovista subsculpta2 August records across all years
Usually recorded in September here:
Scaly Chanterelle Turbinellus floccosus16 September records across all years
Deceiver Laccaria laccata5 September records across all years- Dyer's Mazegill Phaeolus schweinitzii4 September records across all years
Western Chicken-Of-The-Woods Laetiporus gilbertsonii4 September records across all years- Pholiota carbonaria3 September records across all years
Onion Earthball Scleroderma cepa2 September records across all years
Usually recorded in October here:
Scaly Tooth Sarcodon imbricatus3 October records across all years
Mountain Polypore Bondarzewia mesenterica2 October records across all years- Common Porecrust, Split Gill Fungus Schizophyllum commune2 October records across all years
Common Puffball Lycoperdon perlatum2 October records across all years- Western Chicken-Of-The-Woods Laetiporus gilbertsonii2 October records across all years
Usually recorded in November here:
Common Collybia Gymnopus dryophilus3 November records across all years- Western Chicken-Of-The-Woods Laetiporus gilbertsonii3 November records across all years
Poor Man's Slippery Jack Suillus fuscotomentosus2 November records across all years- Chroogomphus albipes2 November records across all years
Bear Lentinus Lentinellus ursinus2 November records across all years
Leucocoprinus leucothites2 November records across all years
Dirty Tricholoma Tricholoma terreum2 November records across all years
Usually recorded in December here:
Golden Milk Cap Lactarius alnicola3 December records since 2011- Yellow Fieldcap Bolbitius titubans2 December records since 2011
Purple Fuzz Punctularia atropurpurascens2 December records since 2011
Miller's Oysterling Clitopilus hobsonii2 December records since 2011
Most-recorded species
| # | Species | Records |
|---|---|---|
| 1 | 22 | |
| 2 | 16 | |
| 3 | 16 | |
| 4 | 14 | |
| 5 | 11 | |
| 6 | 11 | |
| 7 | 10 | |
| 8 | 10 | |
| 9 | 9 | |
| 10 | 7 | |
| 11 | 7 | |
| 12 | 6 | |
| 13 | 6 | |
| 14 | 5 | |
| 15 | 5 |
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: Nov, Jan, Sep.
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 10, 2026Western Chicken-Of-The-Woods Laetiporus gilbertsoniinear Chico, CA · iNaturalist photo, research grade · original record
- 2Sep 10, 2026Western Chicken-Of-The-Woods Laetiporus gilbertsoniinear Chico, CA · iNaturalist photo, research grade · original record
- 3Sep 10, 2026Western Chicken-Of-The-Woods Laetiporus gilbertsoniinear Chico, CA · iNaturalist photo, research grade · original record
- 4
Mar 2, 2026Lawyer's Wig Coprinus comatusin Gray Lodge Wildlife Area, CA · iNaturalist photo, research grade · original record - 5Feb 28, 2026Yellow Fieldcap Bolbitius titubansin North Table Mountain Ecological Reserve, CA · iNaturalist photo, research grade · original record
- 6Jan 8, 2026Wood Blewit Lepista nudanear Chico, CA (location blurred by the observer) · iNaturalist photo, research grade · original record
- 7Jan 8, 2026Crystal Brain Fungus Myxarium nucleatumnear Chico, CA (location blurred by the observer) · iNaturalist photo, research grade · original record
- 8Jan 8, 2026Hairy Curtain Crust Stereum hirsutumnear Butte Valley, CA (location blurred by the observer) · iNaturalist photo, research grade · original record
- 9Jan 8, 2026California Jack O' Lantern Omphalotus olivascensnear Butte Valley, CA (location blurred by the observer) · iNaturalist photo, research grade · original record
- 10Jan 8, 2026Crystal Brain Fungus Myxarium nucleatumnear Butte Valley, CA (location blurred by the observer) · iNaturalist photo, research grade · original record
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How we built this page
456 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 336 CC0 and 120 CC BY 4.0. See about the data for the full citation.