Mushrooms in Linn County, Oregon
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:
Phaeoclavulina myceliosa2 January records across all years
Usually recorded in February here:
Field Bird's Nest Cyathus olla2 February records across all years
Stereum ochraceoflavum2 February records across all years
Usually recorded in March here:
Common Porecrust, Split Gill Fungus Schizophyllum commune3 March records since 2011
Northern Red Belt Fomitopsis mounceae2 March records since 2011
Usually recorded in April here:
Panther Cap Amanita pantherina2 April records across all years
Cryptic Globe Fungus Cryptoporus volvatus2 April records across all years
Usually recorded in May here:
- Rhizopogon albus2 May records across all years
Usually recorded in June here:
Sunshine Amanita Amanita aprica3 June records since 2011
Purple-Red Hygrophorus Hygrophorus purpurascens2 June records since 2011- Northern Red Belt Fomitopsis mounceae2 June records since 2011
Usually recorded in July here:
- Hyphodontia granulosa5 July records across all years
Cratered Duster Amphinema byssoides3 July records across all years- Kneiffia subalutacea3 July records across all years
Pycnoporellus fulgens2 July records across all years- Tulasnella fuscoviolacea2 July records across all years
- Sphaerobasidium minutum2 July records across all years
Spring King Boletus rex-veris2 July records across all years
Usually recorded in August here:
- Northern Red Belt Fomitopsis mounceae3 August records since 2011
Usually recorded in September here:
Bonnet Mycena Mycena galericulata3 September records across all years
Calcipostia guttulata3 September records across all years
Blushing Beard Truffle Rhizopogon roseolus3 September records across all years
Crab Brittlegill Russula xerampelina2 September records across all years- Arrhenia philonotis2 September records across all years
Spreading Phlebia Phlebia radiata2 September records across all years
Usually recorded in October here:
White Fibrecap Inocybe geophylla6 October records since 2011
Bleeding Milk Cap Lactarius rubrilacteus6 October records since 2011
Bicoloured Deceiver Laccaria bicolor5 October records since 2011
Decorated Mop Tricholomopsis decora4 October records since 2011
Flame Bonnet Mycena strobilinoidea4 October records since 2011
Admirable Bolete Aureoboletus mirabilis4 October records since 2011
Pacific Golden Chanterelle Cantharellus formosus4 October records since 2011
Fly Agaric Amanita muscaria4 October records since 2011
Horse-Hair Fungus Gymnopus androsaceus3 October records since 2011
Jewelled Amanita Amanita gemmata3 October records since 2011
Pink Bubblegum Mushroom Aphroditeola olida3 October records since 2011
Pig's Ear Gomphus clavatus3 October records since 2011
Usually recorded in November here:
- Alpova diplophloeus4 November records across all years
Brownlegged Bell Galerina badipes2 November records across all years
Round Puffball Bovista pila2 November records across all years
Truncocolumella citrina2 November records across all years- Athelopsis lembospora2 November records across all years
Western Amethyst Laccaria Laccaria amethysteo-occidentalis2 November records across all years
White Chanterelle Cantharellus subalbidus2 November records across all years
Western Cauliflower Mushroom Sparassis radicata2 November records across all years
False Yellowfoot Chrysomphalina chrysophylla2 November records across all years
Usually recorded in December here:
- Paragymnopus sublaccatus2 December records since 2011
Veiled Poisonpie Hebeloma mesophaeum2 December records since 2011
Xerocomellus mendocinensis2 December records since 2011- Northern Red Belt Fomitopsis mounceae2 December records since 2011
Plums And Custard Tricholomopsis rutilans2 December records since 2011
Most-recorded species
| # | Species | Records |
|---|---|---|
| 1 | 13 | |
| 2 | 8 | |
| 3 | 7 | |
| 4 | 7 | |
| 5 | 6 | |
| 6 | 6 | |
| 7 | 6 | |
| 8 | 5 | |
| 9 | 5 | |
| 10 | 5 | |
| 11 | 5 | |
| 12 | 5 | |
| 13 | 5 | |
| 14 | 5 | |
| 15 | 4 |
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, 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.
- 1Aug 17, 2026Northern Red Belt Fomitopsis mounceaein Willamette National Forest, OR · iNaturalist photo, research grade · original record
- 2Jul 24, 2026Northern Red Belt Fomitopsis mounceaenear Mill City, OR · iNaturalist photo, research grade · original record
- 3
Jul 24, 2026Turkeytail Trametes versicolornear Mill City, OR · iNaturalist photo, research grade · original record - 4
Apr 18, 2026Conifer Mazegill Gloeophyllum sepiariumin Willamette National Forest, OR · iNaturalist photo, research grade · original record - 5
Apr 18, 2026Lawyer's Wig Coprinus comatusnear Stayton, OR · iNaturalist photo, research grade · original record - 6Feb 2, 2026Birch Mazegill, Gilled Polypore Lenzites betulinusnear Crawfordsville, OR · iNaturalist photo, research grade · original record
- 7
Jan 4, 2026Common Bird's Nest Crucibulum laevenear Cascadia, OR · iNaturalist photo, research grade · original record - 8
Dec 7, 2025Late Fall Oyster Mushroom Sarcomyxa serotinanear Cascadia, OR · iNaturalist photo, research grade · original record - 9
Nov 16, 2025Violet Hedgehog Hydnellum fuscoindicumnear Idanha, OR (location blurred by the observer) · iNaturalist photo, research grade · original record - 10
Nov 16, 2025Fir-Cone Mushroom Strobilurus trullisatusnear Detroit, OR (location blurred by the observer) · iNaturalist photo, research grade · original record
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How we built this page
750 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 516 CC0 and 234 CC BY 4.0. See about the data for the full citation.