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Mushrooms in Snohomish County, Washington
Updated October 2026 · from open GBIF records
4,210mushroom records
946species recorded
Octbusiest month
4,210 records since 1900 (387 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:
Hair Ice Crust Exidiopsis effusa3 January records since 2011
Northern Red Belt Fomitopsis mounceae3 January records since 2011
Late Fall Oyster Mushroom Sarcomyxa serotina2 January records since 2011
Pacific Golden Chanterelle Cantharellus formosus2 January records since 2011
Jellied Bird's Nest Fungus Nidula candida2 January records since 2011
Usually recorded in February here:
- Hyphodontia stipata5 February records across all years
- Northern Red Belt Fomitopsis mounceae5 February records across all years
- Serried Porecrust Neoantrodia serialis3 February records across all years
Black Witch's Butter Exidia glandulosa3 February records across all years
Woolly Bird's Nest Fungus Nidula niveotomentosa3 February records across all years
Funnel Chanterelle Craterellus tubaeformis3 February records across all years
Turkeytail Trametes versicolor2 February records across all years
Peniophora cinerea2 February records across all years
Hairy Bracket Trametes hirsuta2 February records across all years- Irpex owensii2 February records across all years
Split Porecrust Schizopora paradoxa2 February records across all years
Usually recorded in March here:
Subulicystidium longisporum5 March records across all years
Rusty Porecrust Fuscoporia ferruginosa4 March records across all years
Cellar Fungus Coniophora puteana4 March records across all years
Stringy Butt Rot Poriella subacida3 March records across all years- Dry Duster Coniophora arida3 March records across all years
- Hairy Bracket Trametes hirsuta3 March records across all years
Tear Dropper Cylindrobasidium laeve2 March records across all years
Mothball Crust Scytinostroma portentosum2 March records across all years- Fungi Owingsia umbellifera2 March records across all years
Penttilamyces olivascens2 March records across all years
Crowded Parchment Stereum complicatum2 March records across all years- Rhodofomes roseus2 March records across all years
Usually recorded in April here:
- Phlegmacium subolivascens3 April records since 2011
- Turkeytail Trametes versicolor3 April records since 2011
Lichenomphalia ericetorum2 April records since 2011
Hare'Sfoot Inkcap Coprinopsis lagopus2 April records since 2011- Woolly Bird's Nest Fungus Nidula niveotomentosa2 April records since 2011
Usually recorded in May here:
Narrow Entoloma Entoloma strictius7 May records across all years
Little Cone Bell Entoloma holoconiotum6 May records across all years
Toothed Crust Xylodon radula5 May records across all years
Pholiota decorata5 May records across all years
Artist's Bracket Ganoderma applanatum5 May records across all years
Honey Pinkgill Entoloma cetratum4 May records across all years- Hairy Bracket Trametes hirsuta3 May records across all years
Willow Glue Hydnoporia tabacina3 May records across all years- Pholiota vernalis3 May records across all years
Piercing Marasmius Paragymnopus perforans3 May records across all years
Bay Polypore Picipes badius3 May records across all years
Laxitextum bicolor2 May records across all years
Usually recorded in June here:
- Pholiota vernalis6 June records across all years
Elegant Polypore Cerioporus varius4 June records across all years
Pine Bracket Porodaedalea pini3 June records across all years
Baker's Shanklet Collybia bakerensis3 June records across all years
Laddered Webcrust Hyphoderma setigerum3 June records across all years
Bluefoot Bonnet Mycena amicta3 June records across all years
Couscous Crust Bulbillomyces farinosus2 June records across all years
False Turkey-Tail Stereum ostrea2 June records across all years
Grey Puffball Bovista plumbea2 June records across all years- Willow Glue Hydnoporia tabacina2 June records across all years
Picipes melanopus2 June records across all years
Brown Funnel Polypore Coltricia perennis2 June records across all years
Usually recorded in July here:
Common Collybia Gymnopus dryophilus5 July records across all years
Jewelled Amanita Amanita gemmata5 July records across all years
Cep Boletus edulis5 July records across all years
Lilac Bonnet Mycena pura4 July records across all years- Pholiota vernalis4 July records across all years
Constricted Grisette Amanita constricta3 July records across all years
Tangerine Bonnet Atheniella aurantiidisca3 July records across all years
Velvet Rollrim Tapinella atrotomentosa3 July records across all years- Veluticeps ambigua2 July records across all years
Xylodon raduloides2 July records across all years
Oxyporus corticola2 July records across all years
European Platterful Mushroom Megacollybia platyphylla2 July records across all years
Usually recorded in August here:
- Northern Red Belt Fomitopsis mounceae7 August records since 2011
Blue Polypore Albatrellopsis flettii4 August records since 2011- Cep Boletus edulis3 August records since 2011
Brown Cubical Rot Laetiporus conifericola3 August records since 2011- Artist's Bracket Ganoderma applanatum2 August records since 2011
Collared Parachute Marasmius rotula2 August records since 2011
West Coast Reishi Ganoderma oregonense2 August records since 2011
Usually recorded in September here:
- Brown Cubical Rot Laetiporus conifericola6 September records since 2011
- Cep Boletus edulis5 September records since 2011
Smith's Bolete Boletus smithii5 September records since 2011- Northern Red Belt Fomitopsis mounceae4 September records since 2011
- Pacific Golden Chanterelle Cantharellus formosus3 September records since 2011
Scaly Chanterelle Turbinellus floccosus3 September records since 2011
Flame Bonnet Mycena strobilinoidea3 September records since 2011
Violet Webcap Cortinarius violaceus3 September records since 2011
Fly Agaric Amanita muscaria3 September records since 2011
Admirable Bolete Aureoboletus mirabilis3 September records since 2011- West Coast Reishi Ganoderma oregonense3 September records since 2011
Rooting Bonnet Mycena megaspora2 September records since 2011
Usually recorded in October here:
- Fly Agaric Amanita muscaria17 October records since 2011
Short-Stemmed Russula Russula brevipes4 October records since 2011- Northern Red Belt Fomitopsis mounceae4 October records since 2011
- Turkeytail Trametes versicolor3 October records since 2011
Sulphur Tuft Hypholoma fasciculare3 October records since 2011- Cep Boletus edulis3 October records since 2011
- Admirable Bolete Aureoboletus mirabilis3 October records since 2011
- Xeromphalina campanelloides2 October records since 2011
Bleeding Fairy Helmet Mycena haematopus2 October records since 2011- Pacific Golden Chanterelle Cantharellus formosus2 October records since 2011
Deep Purple Bolete Xerocomellus atropurpureus2 October records since 2011
Lawyer's Wig Coprinus comatus2 October records since 2011
Usually recorded in November here:
- Northern Red Belt Fomitopsis mounceae6 November records since 2011
- Fly Agaric Amanita muscaria6 November records since 2011
- Late Fall Oyster Mushroom Sarcomyxa serotina5 November records since 2011
White Fibrecap Inocybe geophylla4 November records since 2011
Questionable Stropharia Stropharia ambigua4 November records since 2011- Lawyer's Wig Coprinus comatus4 November records since 2011
Blue-Staining Suillus Suillus caerulescens2 November records since 2011- Woolly Bird's Nest Fungus Nidula niveotomentosa2 November records since 2011
- Violet Webcap Cortinarius violaceus2 November records since 2011
Conifer Tuft Hypholoma capnoides2 November records since 2011
False Chanterelle Hygrophoropsis aurantiaca2 November records since 2011- Turkeytail Trametes versicolor2 November records since 2011
Usually recorded in December here:
- Late Fall Oyster Mushroom Sarcomyxa serotina7 December records since 2011
- Turkeytail Trametes versicolor3 December records since 2011
- Northern Red Belt Fomitopsis mounceae3 December records since 2011
Jelly Rot Phlebia tremellosa2 December records since 2011
Common Porecrust, Split Gill Fungus Schizophyllum commune2 December records since 2011
Crested Coral Clavulina coralloides2 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 | 42 | |
| 2 | 38 | |
| 3 | 36 | |
| 4 | 31 | |
| 5 | 24 | |
| 6 | 24 | |
| 7 | 24 | |
| 8 | 20 | |
| 9 | 19 | |
| 10 | 19 | |
| 11 | 19 | |
| 12 | 19 | |
| 13 | 18 | |
| 14 | 17 | |
| 15 | 17 |
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: Oct, Sep, 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.
- 1Oct 2, 2026Cep Boletus edulisnear Verlot, WA (location blurred by the observer) · iNaturalist photo, research grade · original record
- 2Oct 2, 2026Cep Boletus edulisin Snohomish County, WA (location blurred by the observer) · iNaturalist photo, research grade · original record
- 3Oct 2, 2026West Coast Reishi Ganoderma oregonensein Snohomish County, WA (location blurred by the observer) · iNaturalist photo, research grade · original record
- 4Oct 2, 2026Admirable Bolete Aureoboletus mirabilisin Snohomish County, WA (location blurred by the observer) · iNaturalist photo, research grade · original record
- 5Oct 2, 2026Pacific Golden Chanterelle Cantharellus formosusin Snohomish County, WA (location blurred by the observer) · iNaturalist photo, research grade · original record
- 6
Sep 30, 2026White Chanterelle Cantharellus subalbidusnear Chain Lake, WA (location blurred by the observer) · iNaturalist photo, research grade · original record - 7Sep 28, 2026Violet Webcap Cortinarius violaceusin Mt. Baker National Forest, WA · iNaturalist photo, research grade · original record
- 8Sep 28, 2026Cep Boletus edulisin Mt. Baker National Forest, WA · iNaturalist photo, research grade · original record
- 9Sep 26, 2026Smith's Bolete Boletus smithiinear Canyon Creek, WA · iNaturalist photo, research grade · original record
- 10Sep 23, 2026Cep Boletus edulisnear Verlot, WA (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
4,210 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 3,603 CC0 and 607 CC BY 4.0. See about the data for the full citation.