Brown Parasol
Chlorophyllum brunneum · Family Agaricaceae · Updated October 2026
195US records
17states
Octbusiest month
195 US records since 1903 (152 in the last 10 years)
Last seen Jun 5, 2026 (about 5 months ago) in Vincent Park, CA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from California, Washington and New York, and the busiest months are Oct, Jan 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, Jan, Nov.
Where it's recorded
Top counties
- San Francisco County, CA (44) · latest May 2, 2026
- Los Angeles County, CA (21) · latest Jun 5, 2026
- King County, WA (14) · latest Apr 30, 2019
- Alameda County, CA (12) · latest Nov 6, 2025
- Santa Clara County, CA (9) · latest Jan 6, 2026
- San Diego County, CA (8) · latest Jan 24, 2026
- San Mateo County, CA (7) · latest May 6, 2026
- Marin County, CA (7) · latest Feb 15, 2020
- Kings County, NY (7) · latest Nov 29, 2020
- Sonoma County, CA (5) · latest Jan 20, 2024
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.