Mushrooms in Denver County, Colorado
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:
Puffball Parasol Chlorophyllum agaricoides2 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- Phaeosolenia inconspicua2 March records across all years
Velvet Shank Flammulina velutipes2 March records across all years
Floury Oyster Hohenbuehelia petaloides2 March records across all years
Usually recorded in April here:
Pale Oyster Pleurotus pulmonarius3 April records across all years
Alcohol Inky Cap Coprinopsis atramentaria3 April records across all years
Glistening Ink-Cap Coprinellus micaceus3 April records across all years
Plantpot Dapperling Leucocoprinus birnbaumii3 April records across all years
Lawyer's Wig Coprinus comatus2 April records across all years
Usually recorded in May here:
Dryad's Saddle Cerioporus squamosus5 May records since 2011- Glistening Ink-Cap Coprinellus micaceus5 May records since 2011
Spring Fieldcap Agrocybe praecox2 May records since 2011- Lawyer's Wig Coprinus comatus2 May records since 2011
Salty Mushroom Agaricus bernardii2 May records since 2011
Usually recorded in June here:
- Salty Mushroom Agaricus bernardii4 June records since 2011
Yellow Stainer Agaricus xanthodermus2 June records since 2011
Cultivated Mushroom Agaricus bisporus2 June records since 2011
Common Fieldcap Agrocybe pediades2 June records since 2011
Pavement Mushroom Agaricus bitorquis2 June records since 2011- Dryad's Saddle Cerioporus squamosus2 June records since 2011
Usually recorded in July here:
- Salty Mushroom Agaricus bernardii3 July records since 2011
- Pavement Mushroom Agaricus bitorquis3 July records since 2011
Horse Mushroom Agaricus arvensis2 July records since 2011- Yellow Stainer Agaricus xanthodermus2 July records since 2011
Pale Brittlestem Candolleomyces candolleanus2 July records since 2011- Agaricus bernardiiformis2 July records since 2011
Dung Bird's Nest Cyathus stercoreus2 July records since 2011
Dune Stinkhorn Phallus hadriani2 July records since 2011
Usually recorded in August here:
- Yellow Stainer Agaricus xanthodermus11 August records across all years
Ash Tree Bolete Boletinellus merulioides10 August records across all years
Lepiota lilacea10 August records across all years
Silky Rosegill Volvariella bombycina8 August records across all years- Turkeytail Trametes versicolor6 August records across all years
- Plantpot Dapperling Leucocoprinus birnbaumii5 August records across all years
- Salty Mushroom Agaricus bernardii5 August records across all years
Leopard Earthball Scleroderma areolatum4 August records across all years
Field Mushroom Agaricus campestris3 August records across all years- Pale Brittlestem Candolleomyces candolleanus3 August records across all years
Dwarf Bovist Lycoperdon dermoxanthum2 August records across all years
Shaggy Pholiota Pholiota squarrosa2 August records across all years
Usually recorded in September here:
Shaggy Parasol Chlorophyllum rhacodes5 September records across all years
Pandas Thumb Phallus impudicus4 September records across all years- Glistening Ink-Cap Coprinellus micaceus3 September records across all years
Dark Fieldcap Cyclocybe erebia3 September records across all years- Turkeytail Trametes versicolor3 September records across all years
- Salty Mushroom Agaricus bernardii3 September records across all years
- Puffball Parasol Chlorophyllum agaricoides2 September records across all years
Leucocoprinus leucothites2 September records across all years- Vascellum intermedium2 September records across all years
- Amanita prairiicola2 September records across all years
- Shaggy Pholiota Pholiota squarrosa2 September records across all years
- Yellow Stainer Agaricus xanthodermus2 September records across all years
Usually recorded in October here:
- Salty Mushroom Agaricus bernardii6 October records across all years
- Alcohol Inky Cap Coprinopsis atramentaria5 October records across all years
- Lawyer's Wig Coprinus comatus4 October records across all years
- Turkeytail Trametes versicolor2 October records across all years
- Pandas Thumb Phallus impudicus2 October records across all years
- Velvet Shank Flammulina velutipes2 October records across all years
- Yellow Stainer Agaricus xanthodermus2 October records across all years
Brown Parasol Chlorophyllum brunneum2 October records across all years
Too few past records in November here to list species.
Too few past records in December here to list species.
Most-recorded species
| # | Species | Records |
|---|---|---|
| 1 | 45 | |
| 2 | 28 | |
| 3 | 24 | |
| 4 | 22 | |
| 5 | 21 | |
| 6 | 20 | |
| 7 | 18 | |
| 8 | 18 | |
| 9 | 14 | |
| 10 | 14 | |
| 11 | 14 | |
| 12 | 13 | |
| 13 | 13 | |
| 14 | 12 | |
| 15 | 12 |
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, Jun.
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.
- 1Jun 12, 2026Dryad's Saddle Cerioporus squamosusin Barnum Park, CO · iNaturalist photo, research grade · original record
- 2Jun 7, 2026Salty Mushroom Agaricus bernardiiin Jefferson Park, CO · iNaturalist photo, research grade · original record
- 3Jun 2, 2026Shaggy Parasol Chlorophyllum rhacodesnear Denver, CO · iNaturalist photo, research grade · original record
- 4May 23, 2026Spring Fieldcap Agrocybe praecoxnear Denver, CO · iNaturalist photo, research grade · original record
- 5May 11, 2026Dryad's Saddle Cerioporus squamosusnear Denver, CO · iNaturalist photo, research grade · original record
- 6Mar 27, 2026Spring Fieldcap Agrocybe praecoxnear Denver, CO · iNaturalist photo, research grade · original record
- 7Jan 7, 2026Dryad's Saddle Cerioporus squamosusnear Denver, CO · iNaturalist photo, research grade · original record
- 8Dec 25, 2025Dryad's Saddle Cerioporus squamosusnear Denver, CO · iNaturalist photo, research grade · original record
- 9
Oct 9, 2025Schrenk's Red-Belt Conk Fomitopsis schrenkiinear Denver, CO (location blurred by the observer) · iNaturalist photo, research grade · original record - 10Aug 7, 2025Turkeytail Trametes versicolorin Denver Botanic Gardens, CO · iNaturalist photo, research grade · original record
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How we built this page
978 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 926 CC0 and 52 CC BY 4.0. See about the data for the full citation.