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Crowded Brittlegill

Russula densifolia · Family Russulaceae · Updated October 2026

355US records

30states

Augbusiest month

355 US records since 1898 (83 in the last 10 years)

Last seen Aug 8, 2025 (about 15 months ago) near Cordry Sweetwater Lakes, Brown County, IN, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from New Jersey, Pennsylvania and Tennessee, and the busiest months are Aug, Jul and Oct. (Data as of October 26, 2026; records can lag by weeks.)

⚠ 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.

Lookalike warning. Many mushrooms, including deadly ones, closely resemble each other, and the only reliable identification comes from an expert looking at the actual specimen (often with spore prints or microscopy). Never use a name, photo or record count on this page to decide what something is.

When it's recorded

Records by month, all years. Busiest: Aug, Jul, Oct.

Where it's recorded

State	Records	Latest sighting
New Jersey	193	Oct 30, 2021
Pennsylvania	25	Oct 17, 2023
Tennessee	18	Aug 31, 2013
North Carolina	17	Sep 26, 2015
Minnesota	11	Aug 30, 2007
Michigan	10	Sep 2, 1984
Washington	8	Oct 22, 1992
Vermont	8	Sep 5, 1939
California	6	Jan 27, 2024
Oregon	6	Nov 21, 2023
Alaska	6	Jul 28, 2016
Maryland	6	Sep 21, 1973

Top counties

Sussex County, NJ (36) · latest Sep 28, 2019
Ocean County, NJ (30) · latest Oct 26, 2019
Mercer County, NJ (23) · latest May 4, 2019
Morris County, NJ (22) · latest Jul 20, 2019
Burlington County, NJ (20) · latest Oct 30, 2021
Hunterdon County, NJ (15) · latest Aug 25, 2019
Monmouth County, NJ (13) · latest Aug 22, 2015
Middlesex County, NJ (12) · latest Aug 18, 2019
Bucks County, PA (11) · latest 2019
Warren County, NJ (11) · latest Jul 28, 2019

Bring along

🍄

Regional mushroom field guideSee on Amazon

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Folding mushroom knife with brushSee on Amazon

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Wicker foraging basketSee on Amazon

🍄

10x hand lens / loupeSee on Amazon

🍄

Spore print paperSee on Amazon

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