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Mushrooms in Armstrong County, Pennsylvania
Updated October 2026 · from open GBIF records
1,274mushroom records
485species recorded
Julbusiest month
1,274 records since 1900 (126 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.
Too few past records in January here to list species.
Usually recorded in February here:
Benzoin Bracket Ischnoderma benzoinum2 February records across all years- Fungi Pallidohirschioporus biformis2 February records across all years
Too few past records in March here to list species.
Usually recorded in April here:
Silky Parchment Stereum striatum3 April records across all years
Yellow Cobweb Xenasmatella vaga2 April records across all years
Usually recorded in May here:
- Panus neostrigosus5 May records across all years
Dryad's Saddle Cerioporus squamosus3 May records across all years
Cultivated Mushroom Agaricus bisporus2 May records across all years
Deer Mushroom Pluteus cervinus2 May records across all years
Spring Polypore Lentinus arcularius2 May records across all years
Hairy Long Stem Marasmius Rhizomarasmius pyrrhocephalus2 May records across all years
Brown Hay Cap Panaeolina foenisecii2 May records across all years
Usually recorded in June here:
- Brown Hay Cap Panaeolina foenisecii4 June records across all years
Dung Roundhead Protostropharia semiglobata3 June records across all years
Pale Brittlestem Candolleomyces candolleanus2 June records across all years
Turf Mottlegill Panaeolus fimicola2 June records across all years
Petticoat Mottlegill Panaeolus papilionaceus2 June records across all years
Panaeolus antillarum2 June records across all years
Northern Cinnabar Polypore Trametes cinnabarina2 June records across all years
Hemlock Varnish Shelf Ganoderma tsugae2 June records across all years
Common Fieldcap Agrocybe pediades2 June records across all years
Usually recorded in July here:
Chicken Of The Woods Laetiporus sulphureus3 July records since 2011
Flat Crep Crepidotus applanatus2 July records since 2011
Black-Staining Polypore Meripilus sumstinei2 July records since 2011
Velvet Rollrim Tapinella atrotomentosa2 July records since 2011
Ceramic Parchment Xylobolus frustulatus2 July records since 2011
Usually recorded in August here:
Deceiver Laccaria laccata5 August records across all years
Common Puffball Lycoperdon perlatum5 August records across all years
Agaricus braendlei4 August records across all years
Lactarius mutabilis4 August records across all years
Bitter Bolete Tylopilus felleus4 August records across all years
Oak Bracket Pseudoinonotus dryadeus4 August records across all years
Foetid Russula Russula foetens4 August records across all years- Chicken Of The Woods Laetiporus sulphureus4 August records across all years
- Clitocybe infundibuliformis3 August records across all years
Frost's Amanita Amanita frostiana3 August records across all years
Common Earthball Scleroderma citrinum3 August records across all years
Inocutis dryophila3 August records across all years
Usually recorded in September here:
Inky Mushroom Agaricus placomyces7 September records across all years
Macro Mushroom Agaricus crocodilinus5 September records across all years
Horse Mushroom Agaricus arvensis3 September records across all years- Agaricus nanaugustus3 September records across all years
False Turkey-Tail Stereum ostrea3 September records across all years
Aborted Entoloma, Shrimp Of The Woods Entoloma abortivum3 September records across all years- Stump Puffball Lycoperdon pyriforme3 September records across all years
- Common Puffball Lycoperdon perlatum3 September records across all years
- Birch Mazegill, Gilled Polypore Lenzites betulinus3 September records across all years
Yellow Gymnopilus Gymnopilus luteus3 September records across all years- Agaricus pilosporus2 September records across all years
Agaricus abruptibulbus2 September records across all years
Usually recorded in October here:
- Macro Mushroom Agaricus crocodilinus7 October records across all years
Honey Fungus Armillaria mellea6 October records across all years
Late Fall Oyster Mushroom Sarcomyxa serotina5 October records across all years- Horse Mushroom Agaricus arvensis4 October records across all years
- Hypholoma perplexum4 October records across all years
Oyster Mushroom Pleurotus ostreatus3 October records across all years- Aborted Entoloma, Shrimp Of The Woods Entoloma abortivum3 October records across all years
- Stump Puffball Lycoperdon pyriforme3 October records across all years
Elm Leech Hypsizygus ulmarius3 October records across all years- Agaricus porphyrocephalus2 October records across all years
- Agaricus argyropotamicus2 October records across all years
Salty Mushroom Agaricus bernardii2 October records across all years
Usually recorded in November here:
Brick Cap Hypholoma lateritium3 November records across all years
White-Rot Fungus Trametes pubescens2 November records across all years- Fungi Xanthoperenniporia tenuis2 November records across all years
Oxyporus corticola2 November records across all years
Scarlet Waxcrust Phlebia coccineofulva2 November records across all years
Usually recorded in December here:
Peniophora cinerea4 December records across all years
Phanerochaete sordida2 December records across all years
Bleeding Oak Crust Stereum gausapatum2 December records across all years- Acanthophysium oakesii2 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 | 14 | |
| 2 | 13 | |
| 3 | 12 | |
| 4 | 12 | |
| 5 | 12 | |
| 6 | 12 | |
| 7 | 11 | |
| 8 | 11 | |
| 9 | 11 | |
| 10 | 10 | |
| 11 | 10 | |
| 12 | 10 | |
| 13 | 10 | |
| 14 | 9 | |
| 15 | 9 |
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: Jul, Aug, 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.
- 1Jul 28, 2026Dryad's Saddle Cerioporus squamosusnear Orchard Hills, PA · iNaturalist photo, research grade · original record
- 2Jul 3, 2026Black-Staining Polypore Meripilus sumstineinear West Hills, PA · iNaturalist photo, research grade · original record
- 3Jun 27, 2026Hemlock Varnish Shelf Ganoderma tsugaenear Dayton, PA (location blurred by the observer) · iNaturalist photo, research grade · original record
- 4
Apr 3, 2026Glistening Ink-Cap Coprinellus micaceusnear Orchard Hills, PA · iNaturalist photo, research grade · original record - 5Feb 26, 2026Ceramic Parchment Xylobolus frustulatusnear Manorville, PA · iNaturalist photo, research grade · original record
- 6Aug 22, 2025Chicken Of The Woods Laetiporus sulphureusnear Templeton, PA · iNaturalist photo, research grade · original record
- 7
Jun 21, 2025Orange Pinwheel Marasmius siccusnear Ford City, PA · iNaturalist photo, research grade · original record - 8
May 10, 2025Eastern American Platterful Mushroom Megacollybia rodmaniinear Lenape Heights, PA · iNaturalist photo, research grade · original record - 9Dec 28, 2024Fungi Pallidohirschioporus biformisnear Worthington, PA (location blurred by the observer) · iNaturalist photo, research grade · original record
- 10
Oct 12, 2024Crown-Tipped Coral Artomyces pyxidatusnear Schenley, PA · 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
1,274 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 1,155 CC0 and 119 CC BY 4.0. See about the data for the full citation.