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Mushrooms in Allegheny County, Pennsylvania
Updated October 2026 · from open GBIF records
5,224mushroom records
726species recorded
Sepbusiest month
5,224 records since 1837 (3,058 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:
Phellinus robiniae5 January records since 2011
Mock Oyster Mushroom Phyllotopsis nidulans4 January records since 2011
Scurfy Twiglet Tubaria furfuracea2 January records since 2011- Fungi Pallidohirschioporus biformis2 January records since 2011
Black Witch's Butter Exidia glandulosa2 January records since 2011
Deadly Galerina Galerina marginata2 January records since 2011
Late Fall Oyster Mushroom Sarcomyxa serotina2 January records since 2011
Common Porecrust, Split Gill Fungus Schizophyllum commune2 January records since 2011
Bitter Oysterling Panellus stipticus2 January records since 2011
Usually recorded in February here:
Turkeytail Trametes versicolor3 February records since 2011
Asian Beauty Radulomyces copelandii3 February records since 2011- Common Porecrust, Split Gill Fungus Schizophyllum commune3 February records since 2011
- Fungi Pallidohirschioporus biformis2 February records since 2011
Lumpy Bracket Trametes gibbosa2 February records since 2011
Milk-White Toothed Polypore Irpex lacteus2 February records since 2011- Scurfy Twiglet Tubaria furfuracea2 February records since 2011
Pear-Shaped Puffball Apioperdon pyriforme2 February records since 2011
Northern Cinnabar Polypore Trametes cinnabarina2 February records since 2011
Usually recorded in March here:
- Phellinus robiniae12 March records since 2011
- Common Porecrust, Split Gill Fungus Schizophyllum commune7 March records since 2011
- Turkeytail Trametes versicolor4 March records since 2011
Ceramic Parchment Xylobolus frustulatus4 March records since 2011- Black Witch's Butter Exidia glandulosa4 March records since 2011
Crowded Parchment Stereum complicatum4 March records since 2011- Deadly Galerina Galerina marginata4 March records since 2011
- Birch Mazegill, Gilled Polypore Lenzites betulinus3 March records since 2011
- Northern Cinnabar Polypore Trametes cinnabarina3 March records since 2011
- Scurfy Twiglet Tubaria furfuracea3 March records since 2011
- Pear-Shaped Puffball Apioperdon pyriforme2 March records since 2011
Blushing Bracket Daedaleopsis confragosa2 March records since 2011
Usually recorded in April here:
Dryad's Saddle Cerioporus squamosus25 April records since 2011- Northern Cinnabar Polypore Trametes cinnabarina18 April records since 2011
- Phellinus robiniae15 April records since 2011
- Ceramic Parchment Xylobolus frustulatus15 April records since 2011
- Common Porecrust, Split Gill Fungus Schizophyllum commune14 April records since 2011
- Deadly Galerina Galerina marginata12 April records since 2011
Wine Roundhead Stropharia rugosoannulata10 April records since 2011- Fungi Pallidohirschioporus biformis10 April records since 2011
- Crowded Parchment Stereum complicatum9 April records since 2011
- Milk-White Toothed Polypore Irpex lacteus8 April records since 2011
Brown-Toothed Crust Fungus Hydnoporia olivacea8 April records since 2011
Artist's Bracket Ganoderma applanatum7 April records since 2011
Usually recorded in May here:
- Dryad's Saddle Cerioporus squamosus37 May records since 2011
Orange Mycena Mycena leaiana20 May records since 2011
Eastern American Platterful Mushroom Megacollybia rodmanii12 May records since 2011
Protohydnum album11 May records since 2011
Deer Mushroom Pluteus cervinus10 May records since 2011
Diamond Polypore Neofavolus alveolaris9 May records since 2011
Crown-Tipped Coral Artomyces pyxidatus9 May records since 2011- Turkeytail Trametes versicolor7 May records since 2011
Chicken Of The Woods Laetiporus sulphureus7 May records since 2011- Ceramic Parchment Xylobolus frustulatus6 May records since 2011
Glistening Ink-Cap Coprinellus micaceus6 May records since 2011- Common Porecrust, Split Gill Fungus Schizophyllum commune6 May records since 2011
Usually recorded in June here:
- Protohydnum album18 June records since 2011
- Crown-Tipped Coral Artomyces pyxidatus16 June records since 2011
- Phellinus robiniae11 June records since 2011
Black Trumpet Craterellus cornucopioides11 June records since 2011- Common Porecrust, Split Gill Fungus Schizophyllum commune11 June records since 2011
- Chicken Of The Woods Laetiporus sulphureus8 June records since 2011
- Orange Mycena Mycena leaiana7 June records since 2011
Brown Hay Cap Panaeolina foenisecii6 June records since 2011- Eastern American Platterful Mushroom Megacollybia rodmanii6 June records since 2011
- Fungi Pallidohirschioporus biformis6 June records since 2011
- Dryad's Saddle Cerioporus squamosus6 June records since 2011
Small Chanterelle Cantharellus minor6 June records since 2011
Usually recorded in July here:
- Crown-Tipped Coral Artomyces pyxidatus12 July records since 2011
- Chicken Of The Woods Laetiporus sulphureus10 July records since 2011
Cantharellus flavolateritius10 July records since 2011
Black-Staining Polypore Meripilus sumstinei10 July records since 2011- Common Porecrust, Split Gill Fungus Schizophyllum commune8 July records since 2011
Jellied False Coral Sebacina schweinitzii7 July records since 2011
Green Cheese Polypore Niveoporofomes spraguei7 July records since 2011- Protohydnum album6 July records since 2011
Loweomyces fractipes6 July records since 2011- Phellinus robiniae6 July records since 2011
- Turkeytail Trametes versicolor6 July records since 2011
Black-Stalked Marasmius Tetrapyrgos nigripes5 July records since 2011
Usually recorded in August here:
- Chicken Of The Woods Laetiporus sulphureus22 August records since 2011
Reddening Lepiota Leucoagaricus americanus8 August records since 2011- Northern Cinnabar Polypore Trametes cinnabarina8 August records since 2011
Common Earthball Scleroderma citrinum8 August records since 2011- Protohydnum album7 August records since 2011
Jack O Lantern Omphalotus illudens7 August records since 2011
Ringless Honey Mushroom Desarmillaria caespitosa7 August records since 2011- Orange Mycena Mycena leaiana7 August records since 2011
- Turkeytail Trametes versicolor6 August records since 2011
Bleeding Fairy Helmet Mycena haematopus6 August records since 2011- Asian Beauty Radulomyces copelandii5 August records since 2011
Blushing Rosette Abortiporus biennis4 August records since 2011
Usually recorded in September here:
- Bleeding Fairy Helmet Mycena haematopus14 September records since 2011
- Dryad's Saddle Cerioporus squamosus13 September records since 2011
- Turkeytail Trametes versicolor12 September records since 2011
- Chicken Of The Woods Laetiporus sulphureus11 September records since 2011
Clustered Bonnet Mycena inclinata8 September records since 2011- Ceramic Parchment Xylobolus frustulatus8 September records since 2011
Purple-And-White Deceiver Laccaria ochropurpurea8 September records since 2011- Orange Mycena Mycena leaiana8 September records since 2011
Walnut Mycena Mycena crocea6 September records since 2011
Byssomerulius incarnatus6 September records since 2011- Birch Mazegill, Gilled Polypore Lenzites betulinus6 September records since 2011
- Jack O Lantern Omphalotus illudens6 September records since 2011
Usually recorded in October here:
- Pear-Shaped Puffball Apioperdon pyriforme19 October records since 2011
Late Fall Polypore Ischnoderma resinosum17 October records since 2011
Jelly Rot Phlebia tremellosa13 October records since 2011- Turkeytail Trametes versicolor13 October records since 2011
Giant Puffball Calvatia gigantea10 October records since 2011
Aborted Entoloma, Shrimp Of The Woods Entoloma abortivum9 October records since 2011- Dryad's Saddle Cerioporus squamosus9 October records since 2011
- Lumpy Bracket Trametes gibbosa9 October records since 2011
Wood Blewit Lepista nuda8 October records since 2011- Deadly Galerina Galerina marginata8 October records since 2011
- Chicken Of The Woods Laetiporus sulphureus8 October records since 2011
Bulbous Honey Fungus Armillaria gallica8 October records since 2011
Usually recorded in November here:
- Deadly Galerina Galerina marginata15 November records since 2011
- Late Fall Polypore Ischnoderma resinosum12 November records since 2011
Brick Cap Hypholoma lateritium11 November records since 2011- Crowded Parchment Stereum complicatum9 November records since 2011
- Ceramic Parchment Xylobolus frustulatus8 November records since 2011
- Pear-Shaped Puffball Apioperdon pyriforme7 November records since 2011
Oyster Mushroom Pleurotus ostreatus5 November records since 2011
Common Bird's Nest Crucibulum laeve5 November records since 2011- Phellinus robiniae4 November records since 2011
White Green-Algae Coral Multiclavula mucida4 November records since 2011- Common Porecrust, Split Gill Fungus Schizophyllum commune4 November records since 2011
- Turkeytail Trametes versicolor4 November records since 2011
Usually recorded in December here:
- Deadly Galerina Galerina marginata5 December records since 2011
- Phellinus robiniae5 December records since 2011
- Scurfy Twiglet Tubaria furfuracea4 December records since 2011
Giraffe Spots Peniophora albobadia4 December records since 2011- Milk-White Toothed Polypore Irpex lacteus4 December records since 2011
Bay Polypore Picipes badius3 December records since 2011- Poronidulus conchifer3 December records since 2011
- Ceramic Parchment Xylobolus frustulatus3 December records since 2011
- Fungi Pallidohirschioporus biformis3 December records since 2011
- Common Bird's Nest Crucibulum laeve3 December records since 2011
Warlock's Butter Exidia nigricans2 December records since 2011
Auricularia angiospermarum2 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 | 100 | |
| 2 | 87 | |
| 3 | 72 | |
| 4 | 71 | |
| 5 | 70 | |
| 6 | 65 | |
| 7 | 64 | |
| 8 | 63 | |
| 9 | 59 | |
| 10 | 57 | |
| 11 | 54 | |
| 12 | 53 | |
| 13 | 50 | |
| 14 | 48 | |
| 15 | 47 |
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: Sep, Jul, Oct.
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 5, 2026Clustered Bonnet Mycena inclinatanear Lincoln, PA · iNaturalist photo, research grade · original record
- 2Oct 5, 2026Aborted Entoloma, Shrimp Of The Woods Entoloma abortivumnear Lincoln, PA · iNaturalist photo, research grade · original record
- 3
Oct 3, 2026Brown Goblet Arrhenia epichysiumnear Pittsburgh, PA · iNaturalist photo, research grade · original record - 4Oct 3, 2026Bay Polypore Picipes badiusnear Pittsburgh, PA · iNaturalist photo, research grade · original record
- 5Oct 3, 2026Chicken Of The Woods Laetiporus sulphureusnear Pittsburgh, PA · iNaturalist photo, research grade · original record
- 6
Oct 3, 2026Shaggy Parasol Chlorophyllum rhacodesnear Pittsburgh, PA · iNaturalist photo, research grade · original record - 7
Oct 2, 2026Yellow Patches Amanita flavoconiain Hartwood Acres Park, PA · iNaturalist photo, research grade · original record - 8
Sep 30, 2026Conifer Mazegill Gloeophyllum sepiariumin Fern Hollow Nature Center, PA · iNaturalist photo, research grade · original record - 9Sep 30, 2026Purple-And-White Deceiver Laccaria ochropurpureain Fern Hollow Nature Center, PA · iNaturalist photo, research grade · original record
- 10Sep 30, 2026Common Earthball Scleroderma citrinumnear Sewickley Heights, 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
5,224 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 2,896 CC0 and 2,328 CC BY 4.0. See about the data for the full citation.