Mushrooms in Yuba 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:
Western Amethyst Laccaria Laccaria amethysteo-occidentalis4 January records since 2011
Sulphur Tuft Hypholoma fasciculare3 January records since 2011
Violet-Banded Coral Ramaria violaceibrunnea3 January records since 2011
Poor Man's Slippery Jack Suillus fuscotomentosus2 January records since 2011
Violet Webcap Cortinarius violaceus2 January records since 2011
Rhodonia placenta2 January records since 2011- Hydnellum illudens2 January records since 2011
Deep Purple Bolete Xerocomellus atropurpureus2 January records since 2011
Common Stump Brittlestem Psathyrella piluliformis2 January records since 2011
Bleeding Fairy Helmet Mycena haematopus2 January records since 2011
Ponderous Cort Phlegmacium ponderosum2 January records since 2011
Too few past records in February here to list species.
Usually recorded in March here:
Candy Cap Lactarius rubidus2 March records since 2011
Turkeytail Trametes versicolor2 March records since 2011
Usually recorded in April here:
Brownish Chroogomphus Chroogomphus rutilus4 April records across all years
Cryptic Globe Fungus Cryptoporus volvatus3 April records across all years
Amanita lanei2 April records across all years
Jewelled Amanita Amanita gemmata2 April records across all years- Russula xerophila2 April records across all years
Too few past records in May here to list species.
Too few past records in June here to list species.
Too few past records in July here to list species.
Too few past records in August here to list species.
Too few past records in September here to list species.
Usually recorded in October here:
Lactarius pallescens3 October records across all years
Corn-Silk Fiberhead Pseudosperma sororium2 October records across all years
Piggyback Shanklet Collybia cirrhata2 October records across all years
Rollrim Milkcap Lactarius resimus2 October records across all years
Galactic Milk Cap Lactarius xanthogalactus2 October records across all years
Stuntz's Great Ringless Amanita Amanita pachycolea2 October records across all years
Queen Bolete Boletus regineus2 October records across all years
Common Collybia Gymnopus dryophilus2 October records across all years
Oak-Leaf Pinwheel Collybiopsis quercophila2 October records across all years
Bleeding Milk Cap Lactarius rubrilacteus2 October records across all years
Leucocoprinus flammeotinctus2 October records across all years
Cream Pinkgill Entoloma sericellum2 October records across all years
Usually recorded in November here:
- Lactarius pallescens9 November records across all years
- Galactic Milk Cap Lactarius xanthogalactus9 November records across all years
Lactarius substriatus8 November records across all years
Clay-Gilled Milkcap Lactarius argillaceifolius8 November records across all years- Rollrim Milkcap Lactarius resimus8 November records across all years
- Bleeding Milk Cap Lactarius rubrilacteus7 November records across all years
- Piggyback Shanklet Collybia cirrhata7 November records across all years
Kauffman's Forest Lepidella Amanita silvicola6 November records across all years- Lepiota atrodisca4 November records across all years
Garlic Mushroom Mycetinis copelandii4 November records across all years
Cystoderma fallax4 November records across all years
Grisette Amanita vaginata4 November records across all years
Usually recorded in December here:
- Poor Man's Slippery Jack Suillus fuscotomentosus6 December records since 2011
- Sarcodon squamosus4 December records since 2011
Pholiota velaglutinosa3 December records since 2011
Rhizopogon hawkerae3 December records since 2011- Piggyback Shanklet Collybia cirrhata3 December records since 2011
Suillus brunnescens3 December records since 2011
Olive Phaeocollybia Phaeocollybia olivacea3 December records since 2011- Ponderous Cort Phlegmacium ponderosum3 December records since 2011
Earpick Fungus Auriscalpium vulgare3 December records since 2011- Common Collybia Gymnopus dryophilus3 December records since 2011
- Cortinarius subobtusus2 December records since 2011
Salmon Coral Ramaria formosa2 December records since 2011
Most-recorded species
| # | Species | Records |
|---|---|---|
| 1 | 17 | |
| 2 | 17 | |
| 3 | 16 | |
| 4 | 15 | |
| 5 | 15 | |
| 6 | 14 | |
| 7 | 12 | |
| 8 | 11 | |
| 9 | 10 | |
| 10 | 10 | |
| 11 | 10 | |
| 12 | 9 | |
| 13 | 9 | |
| 14 | 8 | |
| 15 | 8 |
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 8 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.
- 1
Dec 14, 2025Slimy-Girdled Cort Cortinarius glutinosoarmillatusnear North San Juan, CA · iNaturalist photo, research grade · original record - 2Dec 14, 2025Halfbonnets Hemimycena oregonensisnear North San Juan, CA · iNaturalist photo, research grade · original record
- 3
Dec 14, 2025Goat's Foot Polypore Scutiger pes-capraenear North San Juan, CA · iNaturalist photo, research grade · original record - 4
Nov 11, 2025Western Matsutake Tricholoma murrillianumnear Clipper Mills, CA · museum/herbarium specimen · original record - 5Nov 11, 2025Suillus quiescensnear North San Juan, CA · museum/herbarium specimen · original record
- 6
Nov 11, 2025Violet Hedgehog Hydnellum fuscoindicumin Tahoe National Forest, CA · iNaturalist photo, research grade · original record - 7Nov 11, 2025Suillus quiescensin Tahoe National Forest, CA · iNaturalist photo, research grade · original record
- 8
Nov 11, 2025Ballen's American Caesar Amanita calyptrodermain Tahoe National Forest, CA · iNaturalist photo, research grade · original record
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How we built this page
834 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 514 CC0 and 320 CC BY 4.0. See about the data for the full citation.