Mushrooms in Montgomery County, Maryland
Updated October 2026 · from open GBIF records
4,464mushroom records
820species recorded
Octbusiest month
4,464 records since 1879 (2,371 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:
Turkeytail Trametes versicolor16 January records since 2011
Lumpy Bracket Trametes gibbosa13 January records since 2011
Oyster Mushroom Pleurotus ostreatus6 January records since 2011
Ceramic Parchment Xylobolus frustulatus5 January records since 2011
Deadly Galerina Galerina marginata4 January records since 2011
Common Porecrust, Split Gill Fungus Schizophyllum commune4 January records since 2011
Phellinus robiniae4 January records since 2011
Asian Beauty Radulomyces copelandii4 January records since 2011
Crowded Parchment Stereum complicatum3 January records since 2011
False Turkeytail Stereum lobatum3 January records since 2011
Crimped Gill Plicaturopsis crispa3 January records since 2011
Velvet Shank Flammulina velutipes3 January records since 2011
Usually recorded in February here:
- Turkeytail Trametes versicolor7 February records since 2011
- Asian Beauty Radulomyces copelandii4 February records since 2011
- Birch Mazegill, Gilled Polypore Lenzites betulinus4 February records since 2011
Bitter Oysterling Panellus stipticus4 February records since 2011- Lumpy Bracket Trametes gibbosa3 February records since 2011
Crowded Cuplet Merismodes fasciculata2 February records since 2011- Common Porecrust, Split Gill Fungus Schizophyllum commune2 February records since 2011
- Crowded Parchment Stereum complicatum2 February records since 2011
Milk-White Toothed Polypore Irpex lacteus2 February records since 2011- Poronidulus conchifer2 February records since 2011
Black Witch's Butter Exidia glandulosa2 February records since 2011
Mock Oyster Mushroom Phyllotopsis nidulans2 February records since 2011
Usually recorded in March here:
- Turkeytail Trametes versicolor15 March records since 2011
- Lumpy Bracket Trametes gibbosa8 March records since 2011
- Ceramic Parchment Xylobolus frustulatus5 March records since 2011
Pear-Shaped Puffball Apioperdon pyriforme4 March records since 2011- Milk-White Toothed Polypore Irpex lacteus4 March records since 2011
- Birch Mazegill, Gilled Polypore Lenzites betulinus3 March records since 2011
Golden Bracket Fuscoporia gilva3 March records since 2011- Common Porecrust, Split Gill Fungus Schizophyllum commune3 March records since 2011
- Bitter Oysterling Panellus stipticus3 March records since 2011
- Phellinus robiniae3 March records since 2011
- Acanthophysium oakesii2 March records since 2011
Oak Mazegill Daedalea quercina2 March records since 2011
Usually recorded in April here:
Dryad's Saddle Cerioporus squamosus27 April records since 2011
Wine Roundhead Stropharia rugosoannulata15 April records since 2011
Deer Mushroom Pluteus cervinus12 April records since 2011- Turkeytail Trametes versicolor8 April records since 2011
- Ceramic Parchment Xylobolus frustulatus6 April records since 2011
Lawyer's Wig Coprinus comatus5 April records since 2011
False Turkey-Tail Stereum ostrea5 April records since 2011- Milk-White Toothed Polypore Irpex lacteus5 April records since 2011
Spring Polypore Lentinus arcularius4 April records since 2011
Diamond Polypore Neofavolus alveolaris4 April records since 2011- False Turkeytail Stereum lobatum4 April records since 2011
Weeping Widow Lacrymaria lacrymabunda4 April records since 2011
Usually recorded in May here:
- Wine Roundhead Stropharia rugosoannulata17 May records since 2011
- Dryad's Saddle Cerioporus squamosus15 May records since 2011
- Weeping Widow Lacrymaria lacrymabunda8 May records since 2011
Protohydnum album7 May records since 2011
Chicken Of The Woods Laetiporus sulphureus6 May records since 2011- Common Porecrust, Split Gill Fungus Schizophyllum commune5 May records since 2011
- Panus neostrigosus5 May records since 2011
Scaly Sawgill Neolentinus lepideus5 May records since 2011
Crown-Tipped Coral Artomyces pyxidatus4 May records since 2011- Lumpy Bracket Trametes gibbosa4 May records since 2011
Spring Fieldcap Agrocybe praecox4 May records since 2011- Milk-White Toothed Polypore Irpex lacteus4 May records since 2011
Usually recorded in June here:
- Protohydnum album14 June records since 2011
Black-Staining Polypore Meripilus sumstinei10 June records since 2011- Chicken Of The Woods Laetiporus sulphureus9 June records since 2011
Yellow American Blusher Amanita flavorubens7 June records since 2011- Crown-Tipped Coral Artomyces pyxidatus7 June records since 2011
Eastern American Platterful Mushroom Megacollybia rodmanii7 June records since 2011- Common Porecrust, Split Gill Fungus Schizophyllum commune5 June records since 2011
Loweomyces fractipes4 June records since 2011
Stinky Squid Pseudocolus fusiformis4 June records since 2011
Berkeley's Polypore Bondarzewia berkeleyi4 June records since 2011- Fungi Pallidohirschioporus biformis4 June records since 2011
Jellied False Coral Sebacina schweinitzii3 June records since 2011
Usually recorded in July here:
- Black-Staining Polypore Meripilus sumstinei18 July records since 2011
False Caesar's Mushroom Amanita parcivolvata11 July records since 2011
Violet Gray Bolete Tylopilus plumbeoviolaceus10 July records since 2011- Crown-Tipped Coral Artomyces pyxidatus9 July records since 2011
- Berkeley's Polypore Bondarzewia berkeleyi8 July records since 2011
- Protohydnum album7 July records since 2011
Gerronema strombodes6 July records since 2011
False Parasol Chlorophyllum molybdites6 July records since 2011
Lanmaoa carminipes5 July records since 2011- Jellied False Coral Sebacina schweinitzii5 July records since 2011
Smooth Chanterelle Cantharellus lateritius5 July records since 2011
Orange-Gilled Waxycap Humidicutis marginata5 July records since 2011
Usually recorded in August here:
- Black-Staining Polypore Meripilus sumstinei12 August records since 2011
- False Caesar's Mushroom Amanita parcivolvata11 August records since 2011
- Fungi Pallidohirschioporus biformis11 August records since 2011
- Crown-Tipped Coral Artomyces pyxidatus9 August records since 2011
Ringless Honey Mushroom Desarmillaria caespitosa9 August records since 2011- Lumpy Bracket Trametes gibbosa8 August records since 2011
Byssomerulius incarnatus8 August records since 2011- Berkeley's Polypore Bondarzewia berkeleyi8 August records since 2011
- False Parasol Chlorophyllum molybdites7 August records since 2011
- Turkeytail Trametes versicolor7 August records since 2011
- Asian Beauty Radulomyces copelandii7 August records since 2011
Jack O Lantern Omphalotus illudens7 August records since 2011
Usually recorded in September here:
- Ringless Honey Mushroom Desarmillaria caespitosa17 September records since 2011
- Turkeytail Trametes versicolor14 September records since 2011
- Chicken Of The Woods Laetiporus sulphureus12 September records since 2011
- Jack O Lantern Omphalotus illudens11 September records since 2011
- Crown-Tipped Coral Artomyces pyxidatus8 September records since 2011
- Lumpy Bracket Trametes gibbosa8 September records since 2011
Common Earthball Scleroderma citrinum7 September records since 2011- Byssomerulius incarnatus6 September records since 2011
- Asian Beauty Radulomyces copelandii6 September records since 2011
- Stinky Squid Pseudocolus fusiformis5 September records since 2011
Bleeding Fairy Helmet Mycena haematopus5 September records since 2011
Bearded Tooth Hericium erinaceus5 September records since 2011
Usually recorded in October here:
Hen Of The Woods Grifola frondosa23 October records since 2011- Turkeytail Trametes versicolor21 October records since 2011
- Pear-Shaped Puffball Apioperdon pyriforme16 October records since 2011
- Chicken Of The Woods Laetiporus sulphureus15 October records since 2011
- Jack O Lantern Omphalotus illudens13 October records since 2011
- Bearded Tooth Hericium erinaceus11 October records since 2011
Aborted Entoloma, Shrimp Of The Woods Entoloma abortivum10 October records since 2011- Bleeding Fairy Helmet Mycena haematopus10 October records since 2011
American Slippery Jack Suillus americanus9 October records since 2011
Late Fall Polypore Ischnoderma resinosum7 October records since 2011- Birch Mazegill, Gilled Polypore Lenzites betulinus7 October records since 2011
Fly Agaric Amanita muscaria7 October records since 2011
Usually recorded in November here:
- Turkeytail Trametes versicolor12 November records since 2011
- Pear-Shaped Puffball Apioperdon pyriforme10 November records since 2011
- Lumpy Bracket Trametes gibbosa10 November records since 2011
- Bearded Tooth Hericium erinaceus9 November records since 2011
- Birch Mazegill, Gilled Polypore Lenzites betulinus8 November records since 2011
- Fuscoboletinus weaverae7 November records since 2011
Jelly Rot Phlebia tremellosa7 November records since 2011
Ganoderma resinaceum6 November records since 2011- Deadly Galerina Galerina marginata6 November records since 2011
- Fly Agaric Amanita muscaria5 November records since 2011
Celandine Milkcap Lactarius chelidonium4 November records since 2011
Wood Blewit Lepista nuda4 November records since 2011
Usually recorded in December here:
- Turkeytail Trametes versicolor11 December records since 2011
- Lumpy Bracket Trametes gibbosa7 December records since 2011
- Common Porecrust, Split Gill Fungus Schizophyllum commune4 December records since 2011
- Milk-White Toothed Polypore Irpex lacteus4 December records since 2011
- Crowded Parchment Stereum complicatum3 December records since 2011
Giraffe Spots Peniophora albobadia3 December records since 2011- Pear-Shaped Puffball Apioperdon pyriforme3 December records since 2011
- Oyster Mushroom Pleurotus ostreatus3 December records since 2011
- Mock Oyster Mushroom Phyllotopsis nidulans2 December records since 2011
Fluted Bird's Nest Cyathus striatus2 December records since 2011- Fungi Pallidohirschioporus biformis2 December records since 2011
- Deer Mushroom Pluteus cervinus2 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 | 147 | |
| 2 | 72 | |
| 3 | 61 | |
| 4 | 58 | |
| 5 | 56 | |
| 6 | 51 | |
| 7 | 51 | |
| 8 | 51 | |
| 9 | 48 | |
| 10 | 46 | |
| 11 | 46 | |
| 12 | 44 | |
| 13 | 43 | |
| 14 | 41 | |
| 15 | 41 |
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, Aug.
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 9 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
Oct 3, 2026Giant Puffball Calvatia giganteanear North Potomac, MD · iNaturalist photo, research grade · original record - 2Oct 2, 2026Giant Puffball Calvatia giganteanear Wheaton, MD · iNaturalist photo, research grade · original record
- 3
Oct 1, 2026Eastern Stinkhorn Phallus raveneliinear Olney, MD · iNaturalist photo, research grade · original record - 4Sep 20, 2026Bitter Oysterling Panellus stipticusnear Chevy Chase, MD · iNaturalist photo, research grade · original record
- 5Sep 20, 2026Turkeytail Trametes versicolornear Chevy Chase, MD · iNaturalist photo, research grade · original record
- 6Sep 17, 2026Chicken Of The Woods Laetiporus sulphureusnear Potomac, MD · iNaturalist photo, research grade · original record
- 7Sep 16, 2026Stinky Squid Pseudocolus fusiformisnear Clarksburg, MD · iNaturalist photo, research grade · original record
- 8Sep 13, 2026Bearded Tooth Hericium erinaceusnear Aspen Hill, MD (location blurred by the observer) · iNaturalist photo, research grade · original record
- 9Sep 11, 2026Byssomerulius incarnatusin George Washington Memorial Parkway, MD · 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
4,464 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 3,267 CC0 and 1,197 CC BY 4.0. See about the data for the full citation.