Gray-Stemmed Milk Cap
Lactarius pseudomucidus · Family Russulaceae · Updated October 2026
161US records
8states
Novbusiest month
161 US records since 1944 (31 in the last 10 years)
Last seen Feb 14, 2026 (about 8 months ago) in Russian Gulch State Park, CA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from Washington, California and Oregon, and the busiest months are Nov, Oct and Dec. (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: Nov, Oct, Dec.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| Washington | 70 | Dec 2, 2025 |
| California | 67 | Feb 14, 2026 |
| Oregon | 13 | Nov 27, 2023 |
| Alaska | 6 | Oct 14, 2023 |
| Idaho | 2 | Sep 23, 1983 |
| Montana | 1 | Jul 27, 1970 |
| Wisconsin | 1 | Sep 8, 2017 |
| Virginia | 1 | Jul 15, 2016 |
Top counties
- Mendocino County, CA (49) · latest Feb 14, 2026
- Clallam County, WA (45) · latest Nov 7, 2000
- Humboldt County, CA (10) · latest Nov 14, 2025
- King County, WA (6) · latest Dec 11, 2021
- Grays Harbor County, WA (5) · latest Nov 12, 2000
- Lane County, OR (4) · latest Nov 21, 2023
- Lincoln County, OR (4) · latest Nov 27, 2023
- Del Norte County, CA (3) · latest Oct 18, 1997
- Pacific County, WA (3) · latest Nov 10, 2021
- Pierce County, WA (3) · latest Oct 28, 2020
More on this species from GBIF.
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.