Conifer Parasol
Chlorophyllum olivieri · Family Agaricaceae · Updated October 2026
73US records
7states
Octbusiest month
73 US records since 2004 (69 in the last 10 years)
Last seen Sep 19, 2026 (about 5 weeks ago) near Issaquah, King County, WA, 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 Oct, Sep 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.
☠ Dangerous genus. The genus Chlorophyllum includes the green-spored parasol, a very common cause of poisoning. Mushrooms in this group have caused serious or fatal poisonings.
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: Oct, Sep, Nov.
Where it's recorded
| State | Records | Latest sighting |
|---|---|---|
| Washington | 34 | Sep 19, 2026 |
| California | 17 | May 25, 2026 |
| Oregon | 14 | Nov 4, 2024 |
| New York | 3 | Oct 24, 2022 |
| Ohio | 3 | Oct 31, 2023 |
| Tennessee | 1 | Sep 22, 2008 |
| Alaska | 1 | Sep 10, 2021 |
Top counties
- King County, WA (12) · latest Sep 19, 2026
- San Francisco County, CA (7) · latest Jan 20, 2021
- Jefferson County, WA (6) · latest Oct 18, 2021
- Whatcom County, WA (6) · latest Nov 3, 2024
- Lane County, OR (5) · latest Oct 28, 2021
- Clallam County, WA (4) · latest Oct 17, 2025
- Washington County, OR (4) · latest Oct 25, 2024
- Monterey County, CA (4) · latest Jan 31, 2026
- Alameda County, CA (4) · latest May 25, 2026
- Marion County, OR (2) · latest Oct 27, 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.