Mushrooms in Oswego County, New York
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.
Too few past records in February here to list species.
Usually recorded in March here:
Sidera vulgaris2 March records since 2011
Usually recorded in April here:
- Strobilurus esculentus3 April records since 2011
Usually recorded in May here:
Tiger Sawgill Lentinus tigrinus3 May records since 2011- Bresadolia craterella2 May records since 2011
Gymnopus subsulphureus2 May records since 2011
Usually recorded in June here:
Yellow Fieldcap Bolbitius titubans2 June records since 2011
Crepidotus alabamensis2 June records since 2011
Usually recorded in July here:
Field Mushroom Agaricus campestris3 July records since 2011
Milky Conecap Conocybe apala3 July records since 2011
American Caesar's Mushroom Amanita jacksonii3 July records since 2011
Flat Crep Crepidotus applanatus2 July records since 2011
Pale Brittlestem Candolleomyces candolleanus2 July records since 2011
Collared Parachute Marasmius rotula2 July records since 2011
Callistosporium pseudofelleum2 July records since 2011- Phlebia acerina2 July records since 2011
Flame Chanterelle Craterellus ignicolor2 July records since 2011
Hohenbuehelia angustata2 July records since 2011
Zoned Hairy Parachute Crinipellis zonata2 July records since 2011
Shiny Cinnamon Polypore Coltricia cinnamomea2 July records since 2011
Usually recorded in August here:
Luxuriant Thoughshank Collybiopsis luxurians6 August records since 2011
Pallid Bolete Imleria pallida4 August records since 2011
Common Collybia Gymnopus dryophilus3 August records since 2011
Inocybe curvipes3 August records since 2011
Wrinkled Cortinarius Cortinarius corrugatus3 August records since 2011
Cortinarius harrisonii3 August records since 2011
Phaeomarasmius proximans3 August records since 2011
Clay-Gilled Milkcap Lactarius argillaceifolius3 August records since 2011
Chalciporus rubinellus3 August records since 2011
Ash Tree Bolete Boletinellus merulioides3 August records since 2011
Bleeding Tooth Fungus Hydnellum peckii3 August records since 2011
Russula integra3 August records since 2011
Usually recorded in September here:
Woolly Milkcap Lactarius torminosus3 September records since 2011
Subserrulated Leptonia Entoloma subserrulatum3 September records since 2011
Red Banded Webcap Cortinarius armillatus3 September records since 2011
Brown Roll Rim Paxillus involutus3 September records since 2011
Lactarius maculatipes3 September records since 2011
Golden Waxcap Hygrocybe chlorophana3 September records since 2011
Hymenopellis furfuracea3 September records since 2011
Parrot Mushroom Gliophorus psittacinus3 September records since 2011
Snell's Bolete Leccinum snellii3 September records since 2011
Blackening Wax-Cap Hygrocybe conica3 September records since 2011
Black Tooth Phellodon niger3 September records since 2011
Red Edge Brittlestem Psathyrella corrugis3 September records since 2011
Usually recorded in October here:
White-Rot Fungus Trametes pubescens5 October records since 2011- Tricholoma argyraceum3 October records since 2011
Common Stump Brittlestem Psathyrella piluliformis3 October records since 2011
Clouded Agaric Clitocybe nebularis3 October records since 2011
Gymnopus iocephalus3 October records since 2011
Tephrocybe anthracophila3 October records since 2011
Cinnamon Navel Omphalina pyxidata3 October records since 2011- Hebeloma cavipes3 October records since 2011
Slippery Jack Suillus luteus3 October records since 2011
Weeping Widow Lacrymaria lacrymabunda3 October records since 2011
Silver Leaf Disease Chondrostereum purpureum3 October records since 2011- Inocybe serotina3 October records since 2011
Usually recorded in November here:
- Vitreoporus dichrous3 November records across all years
Phellinopsis conchata3 November records across all years
Fragrant Bracket Trametes suaveolens3 November records across all years
Rigidoporus crocatus2 November records across all years
Usually recorded in December here:
- Tulostoma rufum2 December records since 2011
Hoof Fungus Fomes fomentarius2 December records since 2011
Most-recorded species
| # | Species | Records |
|---|---|---|
| 1 | 8 | |
| 2 | 7 | |
| 3 | 7 | |
| 4 | 6 | |
| 5 | 5 | |
| 6 | 4 | |
| 7 | 4 | |
| 8 | 4 | |
| 9 | 4 | |
| 10 | 4 | |
| 11 | 4 | |
| 12 | 4 | |
| 13 | 4 | |
| 14 | 4 | |
| 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: Sep, Aug, 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 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
Dec 30, 2024Red Tree Brain Fungus Peniophora rufanear Fulton, NY · iNaturalist photo, research grade · original record - 2Apr 6, 2024Hoof Fungus Fomes fomentariusnear Oswego, NY · iNaturalist photo, research grade · original record
- 3
Oct 20, 2023Hen Of The Woods Grifola frondosanear Phoenix, NY · iNaturalist photo, research grade · original record - 4
Oct 4, 2023Jelly Rot Phlebia tremellosain Three Mile Bay Wma, NY · iNaturalist photo, research grade · original record - 5Aug 20, 2023Retiboletus vinaceipesin Chateaugay State Forest, NY · museum/herbarium specimen (CUP) · original record
- 6Aug 20, 2023Clavulinopsis luteoalbain Chateaugay State Forest, NY · museum/herbarium specimen (CUP) · original record
- 7
Aug 20, 2023Bay Polypore Picipes badiusnear Mexico, NY · museum/herbarium specimen (CUP) · original record - 8
Aug 20, 2023Candy Cap Lactarius camphoratusin Chateaugay State Forest, NY · museum/herbarium specimen (CUP) · original record - 9Aug 17, 2023Gliophorus fumosusnear Pulaski, NY · original record
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How we built this page
527 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 363 CC0 and 164 CC BY 4.0. See about the data for the full citation.