Mushrooms in Clackamas County, Oregon
Updated October 2026 · from open GBIF records
976mushroom records
368species recorded
Octbusiest month
976 records since 1911 (331 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:
Northern Red Belt Fomitopsis mounceae4 January records since 2011
Common Porecrust, Split Gill Fungus Schizophyllum commune3 January records since 2011
Wrinkled Club Clavulina rugosa2 January records since 2011
Woolly Bird's Nest Fungus Nidula niveotomentosa2 January records since 2011
Usually recorded in February here:
- Common Porecrust, Split Gill Fungus Schizophyllum commune5 February records across all years
- Acanthobasidium penicillatum2 February records across all years
- Northern Red Belt Fomitopsis mounceae2 February records across all years
Lichenomphalia ericetorum2 February records across all years
Usually recorded in March here:
- Lichenomphalia ericetorum8 March records since 2011
- Northern Red Belt Fomitopsis mounceae3 March records since 2011
Turkeytail Trametes versicolor3 March records since 2011- Common Porecrust, Split Gill Fungus Schizophyllum commune2 March records since 2011
Oak Mazegill Daedalea quercina2 March records since 2011
Usually recorded in April here:
- Lichenomphalia ericetorum3 April records across all years
- Acanthobasidium weirii2 April records across all years
Orange Disco Aleurodiscus amorphus2 April records across all years
Purplepore Bracket Trichaptum abietinum2 April records across all years
Cryptic Globe Fungus Cryptoporus volvatus2 April records across all years- Wrinkled Club Clavulina rugosa2 April records across all years
Western American False Panther Amanita pantherinoides2 April records across all years
Usually recorded in May here:
- Lichenomphalia ericetorum4 May records since 2011
Usually recorded in June here:
- Russula mattsmithii3 June records across all years
Sunshine Amanita Amanita aprica3 June records across all years
Veluticeps fimbriata2 June records across all years- Northern Red Belt Fomitopsis mounceae2 June records across all years
Usually recorded in July here:
- Serried Porecrust Neoantrodia serialis2 July records across all years
Fluted Bird's Nest Cyathus striatus2 July records across all years
Usually recorded in August here:
- Rhizopogon alexsmithii4 August records across all years
Gautieria monticola4 August records across all years- Atheliachaete sanguinea4 August records across all years
- Leucogaster rubescens4 August records across all years
Velvet Rollrim Tapinella atrotomentosa3 August records across all years- Cryptic Globe Fungus Cryptoporus volvatus3 August records across all years
- Hysterangium setchellii2 August records across all years
Boletus subalpinus2 August records across all years- Russula extramaculata2 August records across all years
- Russula shafferi2 August records across all years
Majestic Amanita Amanita augusta2 August records across all years
Admirable Bolete Aureoboletus mirabilis2 August records across all years
Usually recorded in September here:
- Russula benwooi5 September records across all years
Rhizopogon parksii3 September records across all years- Leucocoprinus rubrotinctus3 September records across all years
Fly Agaric Amanita muscaria3 September records across all years
Truncocolumella citrina3 September records across all years
Fir-Cone Mushroom Strobilurus trullisatus3 September records across all years- Admirable Bolete Aureoboletus mirabilis2 September records across all years
- Serried Porecrust Neoantrodia serialis2 September records across all years
- Cystolepiota oregonensis2 September records across all years
Jewelled Amanita Amanita gemmata2 September records across all years- Woolly Bird's Nest Fungus Nidula niveotomentosa2 September records across all years
Jellied Bird's Nest Fungus Nidula candida2 September records across all years
Usually recorded in October here:
Lawyer's Wig Coprinus comatus5 October records since 2011
Blushing Rosette Abortiporus biennis5 October records since 2011
Questionable Stropharia Stropharia ambigua5 October records since 2011
Violet Webcap Cortinarius violaceus4 October records since 2011
Western Painted Suillus Suillus lakei4 October records since 2011
Jelly Rot Phlebia tremellosa4 October records since 2011- Fly Agaric Amanita muscaria4 October records since 2011
- Oak Mazegill Daedalea quercina3 October records since 2011
Cep Boletus edulis3 October records since 2011- Admirable Bolete Aureoboletus mirabilis3 October records since 2011
Corn-Silk Fiberhead Pseudosperma sororium2 October records since 2011
Blue-Staining Suillus Suillus caerulescens2 October records since 2011
Usually recorded in November here:
- Fly Agaric Amanita muscaria6 November records since 2011
- Common Porecrust, Split Gill Fungus Schizophyllum commune5 November records since 2011
- Violet Webcap Cortinarius violaceus4 November records since 2011
- Questionable Stropharia Stropharia ambigua4 November records since 2011
Chip Cherries Leratiomyces ceres2 November records since 2011
Late Fall Oyster Mushroom Sarcomyxa serotina2 November records since 2011
Cat's Tongue Pseudohydnum gelatinosum2 November records since 2011
Orange Chrysomphalina Chrysomphalina aurantiaca2 November records since 2011
Rosy Conk Rhodofomes cajanderi2 November records since 2011
Usually recorded in December here:
- Common Porecrust, Split Gill Fungus Schizophyllum commune4 December records across all years
- Orange Disco Aleurodiscus amorphus2 December records across all years
Willow Glue Hydnoporia tabacina2 December records across all years
Olive Phaeocollybia Phaeocollybia olivacea2 December records across all years- Fluted Bird's Nest Cyathus striatus2 December records across all years
Hairy Curtain Crust Stereum hirsutum2 December records across all years
⚠ 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 | 22 | |
| 2 | 19 | |
| 3 | 17 | |
| 4 | 17 | |
| 5 | 16 | |
| 6 | 12 | |
| 7 | Phaeocollybia oregonensis | 11 |
| 8 | 10 | |
| 9 | 9 | |
| 10 | 8 | |
| 11 | 8 | |
| 12 | 7 | |
| 13 | 7 | |
| 14 | 7 | |
| 15 | 7 |
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.
- 1
Sep 26, 2026Western Cauliflower Mushroom Sparassis radicatain Clackamas County, OR · iNaturalist photo, research grade · original record - 2Jul 17, 2026Amanita breckoniiin Clackamas County, OR · iNaturalist photo, research grade · original record
- 3
Jun 30, 2026Banded Mottlegill Panaeolus cinctulusnear Boring, OR (location blurred by the observer) · iNaturalist photo, research grade · original record - 4Apr 17, 2026Turkeytail Trametes versicolornear West Linn, OR · iNaturalist photo, research grade · original record
- 5Apr 4, 2026Cryptic Globe Fungus Cryptoporus volvatusin Mt. Hood National Forest, OR · iNaturalist photo, research grade · original record
- 6Mar 19, 2026Lichenomphalia ericetorumnear West Linn, OR · iNaturalist photo, research grade · original record
- 7Mar 5, 2026Turkeytail Trametes versicolornear Happy Valley, OR · iNaturalist photo, research grade · original record
- 8
Feb 28, 2026Ceriporia spissanear Milwaukie, OR · iNaturalist photo, research grade · original record - 9
Feb 10, 2026Crystal Brain Fungus Myxarium nucleatumin Elk Rock Island, OR · iNaturalist photo, research grade · original record - 10Jan 31, 2026Birch Mazegill, Gilled Polypore Lenzites betulinusnear Happy Valley, OR · 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
976 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 595 CC0 and 381 CC BY 4.0. See about the data for the full citation.