Mushrooms in Rensselaer County, New York
Updated October 2026 · from open GBIF records
667mushroom records
268species recorded
Augbusiest month
667 records since 1827 (387 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:
Brown Cubical Rot Of Birch Fomitopsis betulina2 January records across all years
Crowded Parchment Stereum complicatum2 January records across all years
Too few past records in February here to list species.
Usually recorded in March here:
Turkeytail Trametes versicolor3 March records across all years
Pear-Shaped Puffball Apioperdon pyriforme3 March records across all years
Milk-White Toothed Polypore Irpex lacteus2 March records across all years- Crowded Parchment Stereum complicatum2 March records across all years
- Birch Mazegill, Gilled Polypore Lenzites betulinus2 March records across all years
Too few past records in April here to list species.
Too few past records in May here to list species.
Usually recorded in June here:
Eastern American Platterful Mushroom Megacollybia rodmanii2 June records since 2011- Fungi Pallidohirschioporus biformis2 June records since 2011
Usually recorded in July here:
Golden Spindles Clavulinopsis fusiformis8 July records since 2011
Yellow American Blusher Amanita flavorubens5 July records since 2011- Crowded Parchment Stereum complicatum3 July records since 2011
White Spindles Clavaria fragilis3 July records since 2011
Smoky Spindles Clavaria fumosa2 July records since 2011
Yellow Unicorn Entoloma Entoloma murrayi2 July records since 2011- Fungi Pallidohirschioporus biformis2 July records since 2011
Blue-Green Cracking Russula Russula parvovirescens2 July records since 2011
Reddish Brown Bitter Bolete Tylopilus rubrobrunneus2 July records since 2011
Old Man Of The Woods Strobilomyces strobilaceus2 July records since 2011
Blackfoot Polypore Cerioporus leptocephalus2 July records since 2011
Artist's Bracket Ganoderma applanatum2 July records since 2011
Usually recorded in August here:
Black Trumpet Craterellus cornucopioides22 August records since 2011
Purple-And-White Deceiver Laccaria ochropurpurea10 August records since 2011- Turkeytail Trametes versicolor7 August records since 2011
Jack O Lantern Omphalotus illudens6 August records since 2011- Golden Spindles Clavulinopsis fusiformis4 August records since 2011
Crown-Tipped Coral Artomyces pyxidatus3 August records since 2011- Smoky Spindles Clavaria fumosa2 August records since 2011
White-Rot Fungus Trametes pubescens2 August records since 2011
Ash Tree Bolete Boletinellus merulioides2 August records since 2011- Old Man Of The Woods Strobilomyces strobilaceus2 August records since 2011
Common Puffball Lycoperdon perlatum2 August records since 2011
Spotted Cort Cortinarius iodes2 August records since 2011
Usually recorded in September here:
- Common Puffball Lycoperdon perlatum7 September records since 2011
- Turkeytail Trametes versicolor6 September records since 2011
Painted Suillus Suillus spraguei5 September records since 2011- Golden Spindles Clavulinopsis fusiformis5 September records since 2011
Coral Tooth Hericium coralloides3 September records since 2011
Weeping Widow Lacrymaria lacrymabunda3 September records since 2011
Chicken Of The Woods Laetiporus sulphureus3 September records since 2011
Bear's Head Tooth Hericium americanum3 September records since 2011- Brittlegills Russula uncialis2 September records since 2011
Hare'Sfoot Inkcap Coprinopsis lagopus2 September records since 2011
Orange Mycena Mycena leaiana2 September records since 2011
Silvery-Violet Cort Cortinarius alboviolaceus2 September records since 2011
Usually recorded in October here:
- Bear's Head Tooth Hericium americanum4 October records since 2011
- Turkeytail Trametes versicolor3 October records since 2011
Blushing Bracket Daedaleopsis confragosa3 October records since 2011- Common Puffball Lycoperdon perlatum2 October records since 2011
- Pear-Shaped Puffball Apioperdon pyriforme2 October records since 2011
Jelly Rot Phlebia tremellosa2 October records since 2011
Bulbous Honey Fungus Armillaria gallica2 October records since 2011
Golden Pholiota Pholiota aurivella2 October records since 2011
Usually recorded in November here:
Hoof Fungus Fomes fomentarius5 November records since 2011- Crowded Parchment Stereum complicatum4 November records since 2011
Chaga Inonotus obliquus4 November records since 2011- Pear-Shaped Puffball Apioperdon pyriforme3 November records since 2011
- Brown Cubical Rot Of Birch Fomitopsis betulina2 November records since 2011
- Turkeytail Trametes versicolor2 November records since 2011
Mock Oyster Mushroom Phyllotopsis nidulans2 November records since 2011- Blushing Bracket Daedaleopsis confragosa2 November records since 2011
Usually recorded in December here:
Common Porecrust, Split Gill Fungus Schizophyllum commune2 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 | 25 | |
| 2 | 24 | |
| 3 | 18 | |
| 4 | 15 | |
| 5 | 13 | |
| 6 | 13 | |
| 7 | 11 | |
| 8 | 11 | |
| 9 | 10 | |
| 10 | 10 | |
| 11 | 9 | |
| 12 | 8 | |
| 13 | 8 | |
| 14 | 8 | |
| 15 | 7 |
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: Aug, Sep, Jul.
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 2, 2026Jelly Rot Phlebia tremellosain Rensselaer County, NY (location blurred by the observer) · iNaturalist photo, research grade · original record
- 2Oct 2, 2026Bear's Head Tooth Hericium americanumin Rensselaer County, NY (location blurred by the observer) · iNaturalist photo, research grade · original record
- 3Sep 30, 2026Common Puffball Lycoperdon perlatumin Rensselaer County, NY (location blurred by the observer) · iNaturalist photo, research grade · original record
- 4Sep 30, 2026Common Puffball Lycoperdon perlatumin Rensselaer County, NY (location blurred by the observer) · iNaturalist photo, research grade · original record
- 5
Sep 30, 2026Ivory Coral Ramariopsis kunzeiin Rensselaer County, NY (location blurred by the observer) · iNaturalist photo, research grade · original record - 6Sep 28, 2026Bear's Head Tooth Hericium americanumin Rensselaer County, NY · iNaturalist photo, research grade · original record
- 7Sep 28, 2026Common Puffball Lycoperdon perlatumin Rensselaer County, NY · iNaturalist photo, research grade · original record
- 8Sep 22, 2026Bear's Head Tooth Hericium americanumin Rensselaer County, NY (location blurred by the observer) · iNaturalist photo, research grade · original record
- 9Sep 22, 2026Common Puffball Lycoperdon perlatumin Rensselaer County, NY (location blurred by the observer) · iNaturalist photo, research grade · original record
- 10Sep 22, 2026Fungi Pallidohirschioporus biformisin Rensselaer County, NY (location blurred by the observer) · 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
667 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 645 CC0 and 22 CC BY 4.0. See about the data for the full citation.