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Bitter Brown Leucopax

Leucopaxillus gentianeus · Family Tricholomataceae · Updated October 2026

290US records

17states

Janbusiest month

290 US records since 1904 (171 in the last 10 years)

Last seen Aug 27, 2026 (about 2 months ago) near Chatham, Alger County, MI, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California, Arizona and Washington, and the busiest months are Jan, Dec and Nov. (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: Jan, Dec, Nov.

Where it's recorded

State	Records	Latest sighting
California	218	Feb 23, 2026
Arizona	14	Aug 16, 2026
Washington	13	Oct 17, 2025
Colorado	11	Jul 28, 2022
New Mexico	7	Sep 22, 2025
Idaho	5	Jul 4, 2020
Oregon	5	Dec 11, 2021
Michigan	5	Aug 27, 2026
New York	4	Aug 14, 2021
Alaska	1	Sep 20, 2013
New Hampshire	1	Aug 13, 1963
Pennsylvania	1	1904

Top counties

Santa Cruz County, CA (40) · latest Feb 23, 2026
San Mateo County, CA (31) · latest Dec 2, 2025
Sonoma County, CA (22) · latest Dec 27, 2025
Marin County, CA (20) · latest Nov 8, 2025
Humboldt County, CA (15) · latest Oct 21, 2025
Mendocino County, CA (13) · latest Feb 13, 2026
Alameda County, CA (12) · latest Jan 10, 2024
Sierra County, CA (9) · latest Oct 5, 1989
Contra Costa County, CA (9) · latest Feb 19, 2024
San Francisco County, CA (7) · latest Jan 9, 2023

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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